Monday, August 24, 2020

Discussion questions Coursework Example | Topics and Well Written Essays - 500 words

Conversation questions - Coursework Example The consideration factor of the nursing calling is a workmanship and without being able in this craftsmanship, the study of nursing isn’t extremely accommodating.  At the point when individuals state that they get something, a thought or an idea, which can be as straightforward as figuring out how a machine or a product functions or as convoluted as Rene Decarte’s theory of presence, it is that perception, information or comprehension of the subject which is wrapped in the term epistemology. At the end of the day, the very meaning of the word ‘knowledge’ is epistemology.  Experimentation is the learning strategy that esteems just the experience or the proof a valid hotspot for getting the hang of something. The five faculties of touch, smell, taste, hearing and sight are the main channels that can qualify unpleasant data as information once it has experienced the trial of experience.  Pospositivism is only a basic investigation of positivism. This type of positivism considers the examinations ‘subjective’, where the essential is that the subject and specialist are autonomous of one another and along these lines the investigation or the end is substantial and ‘objective’. A worldview is the place particular ideas (hypotheses and practices) exist in cognizance. This idea gives nurture the freedom to revise the nursing hypotheses as indicated by their particular circumstance so as to meet their objectives.  The metaparadigm of nursing is characterized by the accompanying 4 ideas: individual, condition, wellbeing, and nursing. Do you concur inside this worldwide portrayal of nursing? Why or why not? Would you include some other parts or sub-components?â I would not add some other parts to the meaning of metaparadigm. The four ideas of; individual, condition, wellbeing and nursing are far reaching and comprehensive. Nursing practice spins around the individual (patient) and everything is connected to reacting to the patient’s needs. The earth is second most significant factor. A medical caretaker prepared

Saturday, August 22, 2020

Definition and Examples of Online Writing

Definition and Examples of Online Writing Web based composing alludes to any content made with (and typically planned for review on) a PC, cell phone, or comparative computerized gadget. Additionally called advanced composition. Internet composing designs incorporate messaging, texting, messaging, blogging, tweeting, and posting remarks via web-based networking media locales, for example, Facebook. See Examples and Observations 12 Tips for Improving Online WritingColloquializationComposing Online: Social Is Sexy yet Email Still Rules in the WorkplaceConversationalization and InformalizationEmoji and EmoticonInformal StyleInternet SlangOnline ReadingParagraph LengthPractice in Cutting the Clutter10 Tips on How to Write a Professional EmailTextingTextspeakTop 10 Editing Tips for Business WritersWriting Models and Observations The principle distinction among disconnected and web based composing strategies is that while individuals purchase papers and magazines expecting to understand them, on the Internet individuals for the most part peruse. You should catch their eye and hold it in the event that they are to peruse on. This implies, all in all, internet composing is progressively succinct and pointed and should offer the peruser more prominent interactivity.(Brendan Hennessy, Writing Feature Articles, fourth ed. Central Press, 2006) Advanced composing isn't only a question of finding out about and coordinating new computerized apparatuses into an unaltered collection of creative cycles, practices, abilities, and propensities for mind. Advanced composing is about the sensational changes in the biology of composing and correspondence and, for sure, writing to make and create and share.(National Writing Project, Because Digital Writing Matters: Improving Student Writing in Online and Multimedia Environments. Jossey-Bass, 2010) Organizing Online Writing Since online perusers will in general sweep, a Web page or email message ought to be noticeably organized; it ought to have what [Jakob] Nielsen calls a searchable design. He found that successive utilization of headings and slugs can expand intelligibility by 47 percent. What's more, since his examination found that just around 10 percent of online perusers look underneath the content at first obvious on the screen, internet composing ought to be fronted, with the most significant data set toward the start. Except if you have a valid justification otherwiseas in a terrible news message, for examplestructure your Web pages and email messages like paper articles, with the most significant data in the title text (or headline) and the first paragraph.(Kenneth W. Davis, The McGraw-Hill 36-Hour Course in Business Writing and Communication, second ed. McGraw-Hill, 2010) Blogging Websites are generally composed by one individual in their own individual language. This, hence, presents you with the perfect chance to introduce the human face and character of your business.You can be: - conversational-excited drawing in personal (however not excessively so)- casual. The entirety of this is conceivable ceaselessly past the constraints of what might be considered as the worthy voice of the company.However, different styles might be required attributable to the idea of your business or your readership.On the last mentioned, similarly as with different types of web based composition, its imperative to know your peruser and their desires before you start composing a blog.(David Mill, Content Is King: Writing and Editing Online. Butterworth-Heinemann, 2005) Single Sourcing Single sourcing portrays the arrangement of abilities identified with the transformation, refreshing, remediating, and reuse of substance over numerous stages, items, and media. . . . Making reusable substance is a significant aptitude in Internet composing for an assortment of reasons. It spares the composing group time, exertion, and assets by composing content once and reusing it on numerous occasions. It additionally makes adaptable substance that can be adjusted and distributed in an assortment of configurations and media, for example, site pages, recordings, webcasts, commercials, and printed literature.(Craig Baehr and Bob Schaller, Writing for the Internet: A Guide to Real Communication in Virtual Space. Greenwood Press, 2010)

Thursday, July 16, 2020

Avoidance Behaviors and Social Anxiety Disorder

Avoidance Behaviors and Social Anxiety Disorder Avoidance behaviors, in the context of social anxiety disorder (SAD), are things that people do or dont do to reduce anxiety about being in social situations. These behaviors are problematic because in the long run they only serve to increase fear. Avoidance behaviors can take three different forms: avoidance, escape or partial avoidance.?? Avoidance True avoidance behaviors involve the complete avoidance of the feared social situation. For example, someone afraid of public speaking might: Drop a class in which he has to give a speech  Change jobs to avoid giving presentationsFail to show up for an event such as a wedding or awards ceremony in which he is expected to speak in front of others Escape When total avoidance is impossible, escape behaviors may be used as a means of dealing with feared situations. Escape involves leaving or escaping from a feared social or performance situation. Some examples of escape include Leaving a gathering earlyWalking out in the middle of a speechHiding in the restroom during a dinner party Partial Avoidance When neither avoidance nor escape is possible, partial avoidance (also known as safety behaviors) may be used to alleviate feelings of anxiety during social or performance situations. Safety behaviors generally limit or control your experience of a situation. Safety behaviors might include such things as?? Avoiding eye contactReduced verbal communicationLowering ones voice when speaking Are You Using Safety Behaviors? If safety behaviors have become a way of life for you, it might be hard to even be able to recognize if you are using them. They may have become habitual ways of behaving that now you dont even know what it would be like not to use them. If you continue to feel anxious in situations even after facing them many times, this is a clue that you might be using safety behaviors. Notice situations that you face often but that still cause you anxietyâ€"and then identify what you might be doing in those situations to avoid feeling anxious, such as talking fast, avoiding eye contact, or wearing plain clothes to avoid drawing attention to yourself. While not using safety behaviors will result in increased anxiety in the short term, over the long term, it will help you to overcome your anxiety. Avoidance Maintains Anxiety The problem with avoidance behaviors is that they maintain the symptoms of anxiety. The safety behaviors are often assigned value for surviving social anxiety, but then blame for the anxiety or awkwardness is still placed upon the self, perpetuating the cycle.?? If you always avoid giving speeches, or if you only give speeches without making eye contact, your anxiety about giving a speech will never diminish. These behaviors prevent you from gathering evidence that disproves your maladaptive beliefs about social situations. For example, if you always leave a party at the first sign of anxiety, you never have the chance to learn that if you stay long enough in the situation, your anxiety will eventually diminish. Instead of avoiding giving speeches, or only delivering them in a safe way, you need exposure to giving speeches without avoiding, escaping or using safety behaviors. Cognitive-behavioral therapy (CBT) aims to identify avoidance behaviors and provide exposure to feared situations.??Acceptance and commitment therapy (ACT) teaches you how to lessen the impact of your anxious thoughts in perpetuating the cycle of panic and anxiety.?? In fact, research has demonstrated that exposure treatment (one component of CBT) for social anxiety disorder will be less effective when a person is using safety behaviors. This suggests that reducing your use of safety behaviors when entering therapy may help to give you a better result. Five-Minute Solution Are you looking for a quick way to reduce your avoidance? Draw on the principles of the therapies mentioned above. For example, you might do the following: If you have an urge to hide in the bathroom at the next party you attend, promise yourself to go back out for at least five minute intervals before you return. Gradually work your way up to longer periods of returning to  the party. If you have thoughts such as the following: Everyone must think I am awkward and boring say something to yourself like That is interesting, but its just a thought. I dont have to let it bother me. Thats just what my mind does when I am in these situations. A Word From Verywell While avoidance maintains anxiety, be careful to gradually move  into exposure situations after a long period of using safety and avoidance. Its better to gradually work on reducing your use of these behaviors while increasing time spent in situations that cause you anxiety. The 9 Best Online Therapy Programs

Thursday, May 21, 2020

Accounting Software Example - 1303 Words

Table of Contents OBJECTIVES 3 BUSINESS INTRODUCTION 3 ACCOUNTING SOFTWARE 3 ADVANTAGES 4 COMMUNICATION 4 FINANCIAL MANAGEMENT 4 SALES MANAGEMENT 5 INVENTORY CONTROL (IC) 5 HUMAN RESOURCES (HR) 5 DISADVANATGES 5 ANALYSIS OF DATA 6 SUMMARY 6 Bibliography 7 OBJECTIVES In this assignment I will review the accounting software appropriate to the outlined hypothetical company. On the one hand, I will consider advantages and disadvantages of the software which are relevant to the proper management of the company. On the other hand I will demonstrate the relevant connection of the accounting software to the financial management of the company. BUSINESS INTRODUCTION Emfibia Limited is a medium size manufacturing†¦show more content†¦Sales management is connected with purchasing management and inventory control to provide better analysis of the data. The software supports controls of purchasing materials, orders, goods receipt and payment. INVENTORY CONTROL (IC) The inventory control in Emfibia Limited is another important area. The company has to have organised importation by having large numbers of inventory. Therefore, the company can start losing the capital. This is why they require appropriate analysis with stock valuation and the movement of the goods. Sage ERP X3 runs on similar principles to manual ones, but this software is more flexible and it is possible to receive the information in real time. Inventory Control is closely connected with the manufacturing management. The software uses Kanban method of Just-in-Time production. The information can be grouped by cost centres, price lists. The important tool is to forecast the future cost. When the company will prepare new production in six months time, the software can analyze the actual cost of the production. HUMAN RESOURCES (HR) When company has 240 employees it needs an efficient HR Management. Emfibia Limited provides a variety of salaries, contracts and benefits for the employees. Sage has all the important covered with applications necessary for Personnel Management, Benefit Management, Payroll Management, Employee Self Service, Health and Safety, WorkforceShow MoreRelatedWhat Is In I.T. (Information Technology) For Me? Enrolled1084 Words   |  5 Pagesmajor in accounting and a recent interest in a minor in information systems; my career plans are working with some of the systems accountants are using today. Which, consequently, could place my career in either an I.T. department for an accounting firm or I could be a private accountant. The I.T. I plan on covering in accounting is software, and the different categories and types of accounting software that accountants work on. Andy Walton, in his article â€Å"The Importance of Accounting Software† definesRead MoreEssay on Accounting Software1234 Words   |  5 Pageshuman history. The emerging of a new concept called Computerized Accounting Information System (CAIS) particularly, is one example of this â€Å"cutting-edge calculator’s† intervention on bookkeeping activities. As many companies tend to apply this new frame to treat their transaction recordings, many accounting software developers try to provide an advanced computer program as the main engine of the companies’ CAIS. Some of the softwares are declared that it does not need anymore accountant assistancesRead MoreAccounting And Payroll Application Software Packages Essay1494 Words   |  6 PagesThe accounting software, is a computer software that records and processes accounting transactions within practical components such as accounts payable, accounts receivable, payroll and trial balance. The software may be de veloped by the organization using it, may be purchased from a third party or may be a combination of both. Today’s packaged accounting software not only records financial transactions and produce accounting reports, but they include functionality for managerial decision makingRead MoreAccounting Software Bridge Gap For Small Businesses1607 Words   |  7 PagesAccounting Software Bridge Gap for Small Businesses Small Businesses face more challenges than large corporations, it is often difficult for small businesses to remain competitive in a constant changing economy. Many small businesses lack the capital, know how, and budgetary allocation that helps small businesses build and expand. Therefore, small businesses depend on accounting software to narrow the gap between large corporation and small businesses by reducing cost, boost efficiency, reduce manualRead MoreThe Effects of Technology on the Accounting Profession600 Words   |  3 PagesThe Effects of Technology on the Accounting Profession In today’s business society, the accounting technology whether it be software or hardware is a vital part of just about every major business. Many people overlook the importance of the role of accounting technology in business and in the accounting profession. The fact is technology such as accounting information systems can make or break a business. Utilization of Information Technology in the Retail Businesses (Wal-Mart) To succeed in theRead MoreEffects of Technology on the Accounting Profession1085 Words   |  5 PagesTechnology on the Accounting Profession University of Phoenix ACC/340 Accounting Information Systems Effects of Technology on the Accounting Profession Businesses have become more competitive, consumers are more informed, and technology has changed the way the world communicates. Information technology (IT) and the resulting ‘information age’ are continuously impacting every facet of accounting. (Bagranoff, Simkin, amp; Strand-Norman, 2006) This paper will examine how accounting information systemsRead MoreA Presentation Of Jena Mines1461 Words   |  6 Pagesenterprise resource planning (ERP) that processes and posts transactions in real time. It contains modules in the form of Financial Accounting (FI) and Controlling (CO), FI which is for external accounting and Controlling for internal managerial reporting. There has been a growing increase in using Enterprise Resource Planning (ERP) systems developed by, for example, SAP, Oracle, Baan, PeopleSoft and JD Edwards as a business information system platform for large organisations and also some smallRead MoreQuickbooks Accounting Software Essay1569 Words   |  7 Pagescountries. Accounting/Finance application systems like Peachtree, Net Suite and QuickBooks let you manage your business with a little or no experience. All three application systems allow the users to manage the companies capital including bookkeeping, inventory, non-inventory service items, sales orders, purchase orders, and reports. It allows the companies to keep tracking of the financial assets and at the same time have the information the accountant needs. Using the accounting/finance applicationRead MoreQuickbooks1616 Words   |  7 Pagescountries. Accounting/Finance application systems like Peachtree, Net Suite and QuickBooks let you manage your business with a little or no experience. All three application systems allow the users to manage the companies capital including bookkeeping, inventory, non-inventory service items, sales orders, purchase orders, and reports. It allows the companies to keep tracking of the financial assets and at the same time have the information the accountant needs. Using the accounting/finance applicationRead MoreAccounting Is The Process Of Identifying, Recording And Communicating Information807 Words   |  4 PagesAccounting is the process of identifying, recording and communicating information to interested users. Financial Statements, such as the balance sheets, income statements, etc. must follow GAAP or United Stated GAAP. GAAP or Generally Accepted Accounting Principles is a set of principles that gives accountants guidance when performing the accounting cycle. The accounting cycle is a lengthy process. The eight steps in the accounting cycle are as follows: identify the transactions, journalize the transactions

Wednesday, May 6, 2020

Essay on Business Research Methods, Part Ii - 1616 Words

Running Head: BUSINESS RESEARCH METHODS, PART II Business Research Methods, Part II University of Phoenix QNT/HC561: Applied Business in Research Statistics in Health Care Group ID: MBAY0ZATZ9 Erik Kirk, PhD August 22, 2011 Introduction Recently, Learning Team â€Å"A† was tasked with developing a research question arising from an organizational dilemma faced by the Physical Therapy Clinic. As a result of preliminary research analysis, the team determined constraints in clinical practice were having a negative impact on the therapist’s ability to fully meet patient needs. A proposal was submitted to organizational leadership that included recommendations to utilize a standard six-step research question hierarchy process. The†¦show more content†¦Patient was injured at work loading crates. Patient was reinjured knee falling on ice while shoveling snow. Mechanism of injury, patient reports decrease in mobility. Patient was injured during high school soccer game. 3) Has there been prior therapy for same condition? o Yes ïÆ' ¼ No ïÆ' ¼ Yes o No o Yes ïÆ' ¼ No 4) What does patient states overall health is currently? o Poor ïÆ' ¼ Good o Excellent ïÆ' ¼ Poor o Good o Excellent o Poor o Good ïÆ' ¼ Excellent 5) What is the patient’s social history/living environment? Lives with his wife and three children Widow and lives alone. Lives at home with parents. 6) What is the patient’s prior level of function? Works out occasionally Has no time to exercise. Trains daily with team during season and works out regularly during off season. 7) What is the patient’s current functional level? Have no limitations. Advance onset of arthritis present in both knees. Have no limitations. 8) Is the physical therapy clinic a provider within the patient’s insurance plan and will the therapy be covered? PPO plan that covers up to $1000 for physical therapy, however he also will be getting workers compensation. Medicare supplemental, with a doctor’s order medicare covers physical therapy and the supplemental insurance will cover the co-payments. PPO plan that covers up to $1000 for physical therapy 12) Did the patient have a doctor’s referral for the physical therapy? o Yes ïÆ' ¼ No ïÆ' ¼ Yes o No o No ïÆ' ¼ YesShow MoreRelatedQnt 561 Complete Class Essay963 Words   |  4 Pageshttp://homeworkonestop.com/qnt-561-complete-class Product Description QNT 561 (Applied Business Research and Statistics ) Week 1 Individual Week One Practice Problems Complete the following Week One Practice Problems in MyStatLab ®: †¢ Ch. 2 of Statistics for Business and Economics o 2.37, 2.38, 2.44, 2.46, 2.54, 2.64, 2.68, 2.79, 2.85, 2.89, 2.93, 2.94, 2.106, and 2.108 †¢ Ch. 4 of Statistics for Business and Economics o 4.1, 4.12, 4.13, 4.21, 4.79, 4.80, 4.81, 4.89, 4.91, 4.106, and 4.124 Read MoreThe Benefits Of Erp Systems For Small And Mid Size Organizations1160 Words   |  5 PagesBusiness Research Topic The objective of my research is to study the use of Information Technology and particularly ERP (Enterprise Resource Planning) system for small and mid-size organizations. 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(1 pt) Given the following two-person game, which strategy can be eliminated by use of dominance? Y1 Y2 13 0 X2 6 8 X3 12 14 a. X2 c. Y2 b. Y1 e. X1 d. X3 The following payoff table is using for next 6 questions. 2. (1 pt) What decision would an optimist make? a. Alternative 1 c. State ofRead MoreA New Joe on the Block1540 Words   |  7 Pagescompetitors in the market, how far his coffee shop with the competitor, how the competitors run their business, when people crowded the area and the location of the supplier. b) Popular coffee shop: Find the consumer behaviour and study more details about them and find out the benchmark for the coffee shop to make people know the coffee shop. c) The consumption pattern: from the research he made he noticed that people in the United States like the local taste of coffee and like the tasteRead MoreQuestionnaire On Business Research Methods1415 Words   |  6 Pages Assessment 2 (Part A) Questionnaire Development (BMO6630) Business Research Methods Submitted to: Mr. Charles Jebarajakirthy Submitted By: Baldish Kaur (4490938) Kiranpreet Kaur (4492272) Statement of the Research This Questionnaire is designed to address the â€Å"Management problem in Airline industry due to the rapid growth of Low Cost Carriers† (LCCs) which especially increase the demand of Low cost travel. 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Factors Affecting Solubility Free Essays

string(174) " be written with all ions, or without the spectator ions \(the ion that don’t react, present on both sides of the reaction\), a format known as the net ionic equation\." There are three main factors that control solubility of a solute. (1) Temperature (2) Nature of solute or solvent (3) Pressure EFFECT OF TEMPERATURE Generally in many cases solubility increases with the rise in temperature and decreases with the fall of temperature but it is not necessary in all cases. However we must follow two behaviours: In endothermic process, solubility increases with the increase in temperature and vice versa. We will write a custom essay sample on Factors Affecting Solubility or any similar topic only for you Order Now For example: solubility of potassium nitrate increases with the increase in temperature. In exothermic process, solubility decrease with the increase in temperature. For example: solubility of calcium oxide decreases with the increase in temperature. Gases are more soluble in cold solvent than in hot solvent. NATURE OF SOLUTE AND SOLVENT Solubility of a solute in a solvent purely depends on the nature of both solute and solvent. A polar solute dissolved in polar solvent. Solubility of a non-polar solute in a solvent is large. A polar solute has low solubility or insoluble in a non-polar solvent. EFFECT OF PRESSURE The effect of pressure is observed only in the case of gases. An increase in pressure increases of solubility of a gas in a liquid. For example carbon dioxide is filled in cold drink bottles (such as coca cola, Pepsi 7up etc. ) under pressure. Properties of Solution Concentration The concentration of a solution is the measure of how much solute and solvent there is. A solution is concentrated if it contains a large amount of solute, or dilute if contains a small amount. Molarity Molarity is the number of moles of solute per litre of solution. It is abbreviated with the symbol M, and is sometimes used as a unit of measurement, e. g. a 0. 3 molar solution of HCl. In that example, there would be 3 moles of HCl for every 10 litres of water (or whatever the solvent as). Molality Molality is the number of moles of solute per kilogram of solvent. It is abbreviated with the symbol m (lowercase), and is sometimes used as a unit of measurement, e. g. a 0. 3 molal solution of HBr. In that example, there would be 3 moles of HBr for every 10 kilograms of water (or whatever the solvent was). Mole Fraction The mole fraction is simply the moles of solute per moles of solution. As an example, you dissolve one mole of NaCl into three moles of water. Remember that the NaCl will dissociate into its ions, so there are now five moles of particles: one mole Na+, one mole Cl-, and three moles water. The mole fraction of sodium is 0. 2, the mole fraction of chloride is 0. 2, and the mole fraction of water is 0. 6. The mole fraction is symbolized with the Greek letter (chi), which is often written simply as an X. Dilution Dilution is adding solvent to a solution to obtain a less concentrated solution. Perhaps you have used dilution when running a lemonade stand. To cut costs, you could take a half-full jug of rich, concentrated lemonade and fill it up with water. The resulting solution would have the same total amount of sugar and lemon juice, but double the total volume. Its flavour would be weaker due to the added water. The key concept is that the amount of solute is constant before and after the dilution process. The concentration is decreased (and volume increased) only by adding solvent. Thus, the number of moles of solute before and after dilution are equal. moles1 = moles2 By definition of molarity, you can find the moles of solvent. M x V = moles Substituting the second equation into the first gives the dilution equation. M1 x V1 = M2 x V2 To determine the amount of solvent (usually water) that must be added, you must know the initial volume and concentration, and the desired concentration. Solving for V2 in the above equation will give you the total volume of the diluted solution. Subtracting the initial volume from the total volume will determine the amount of pure solvent that must be added. Ionic Solutes When ionic compounds dissolve in water, they separate into ions. This process is called dissociation. Note that because of dissociation, there are more moles of particles in the solution containing ions than there would be with the solute and solvent separated. If you have two glasses of water, and you dissolve salt into one and sugar into the other, there will be a big difference in concentration. The salt will dissociate into its ions, but sugar (a molecule) will not dissociate. If the salt were NaCl, the concentration would be double that of the sugar. If the salt were MgCl2, the concentration would be triple (there are three ions). Solubility Rules Not all ionic compounds are soluble. Some ionic compounds have so much attractive force between their anions and cations that they will not dissociate. These substances are insoluble and will not dissolve. Instead, they clump together as a solid in the bottom of solution. Many ionic compounds, however, will dissociate in water and dissolve. In these cases, the attractive force between ion and water is greater than that between cation and anion. There are several rules to help you determine which compounds will dissolve and which will not. Solubility Rules 1. All compounds with Group 1 ions or ammonium ions are soluble. 2. Nitrates, acetates, and chlorates are soluble. 3. Compounds containing a halogen are soluble, except those with fluorine, silver, or mercury. If they have lead, they are soluble only in hot water. 4. Sulfates are soluble, except when combined with silver, lead, calcium, barium, or strontium. . Carbonates, sulfides, oxides, silicates, and phosphates are insoluble, except for rule #1. 6. Hydroxides are insoluble except when combined with calcium, barium, strontium, or rule #1. Sometimes, when two different ionic compounds are dissolved, they react, forming a precipitate that is insoluble. Predicting these reactions requires knowledge of the activity series and solubility rules. These reactions can be wri tten with all ions, or without the spectator ions (the ion that don’t react, present on both sides of the reaction), a format known as the net ionic equation. You read "Factors Affecting Solubility" in category "Papers" For example, silver nitrate is soluble, but silver chloride is not soluble (see the above rules). Mixing silver nitrate into sodium chloride would cause a cloudy white precipitate to form. This happens because of a double replacement reaction. Electrolytes When solutes dissociate (or if a molecule ionizes), the solution can conduct electricity. Compounds that readily form ions, thus being good conductors, are known as strong electrolytes. If only a small amount of ions are formed, electricity is poorly conducted, meaning the compound is a weak electrolyte. A strong electrolyte will dissolve completely. All ions dissociate. A weak electrolyte, on the other hand, will partially dissociate, but some ions will remain bonded together. Colligative Properties Some properties are the same for all solute particles regardless of what kind. These are known as the colligative properties. These properties apply to ideal solutions, so in reality, the properties may not be exactly as calculated. In an ideal solution, there are no forces acting between the solute particles, which is generally not the case. Vapor Pressure All liquids have a tendency for their surface molecules to escape and evaporate, even if the liquid is not at its boiling point. This is because the average energy of the molecules is too small for evaporation, but some molecules could gain above average energy and escape. Vapor pressure is the measure of the pressure of the evaporated vapor, and it depends on the temperature of the solution and the quantities of solute. More solute will decrease vapor pressure. The vapor pressure is given by Rauolt’s Law, where X is the mole fraction of the solvent. Notice that the vapor pressure equals that of the pure solvent when there is no solute (X = 1). If X = 0, there would be no vapor pressure at all. This could only happen if there were no solvent, only solute. A solid solute has no vapor pressure. P solution = P pure solvent (X solvent) If two volatile substances (both have vapor pressures) are in solution, Rauolt’s Law is still used. In this case, Rauolt’s Law is essentially a linear combination of the vapor pressures of the substances. Two liquids in solution both have vapor pressures, so this equation must be used. P solution = P1 (X1) + P2(X2) The second equation shows the relationship between the solvents. If two liquids were mixed exactly half-and-half, the vapor pressure of the resulting solution would be exactly halfway between the vapor pressures of the two solvents. Another relation in Henry’s Law, which shows the relationship between gas and pressure. It is given by Cg = k Pg , where C is concentration and P is pressure. As the pressure goes up, the concentration of gas in solution must also increase. This is why soda cans release gas when they are opened – The decrease in pressure results in a decrease in concentration of CO2 in the soda. Boiling Point Elevation A liquid reaches its boiling point when its vapor pressure is equal to the atmosphere around it. Because the presence of solute lowers the vapor pressure, the boiling point is raised. The boiling point increase is given by: ?T solution = Kb X m solution The reduced vapor pressure increases the boiling point of the liquid only if the solute itself is non-volatile, meaning it doesn’t have a tendency to evaporate. For every mole of non-volatile solute per kilogram of solvent, the boiling point increases by a constant amount, known as the molal boiling-point constant (Kb). Because this is a colligative property, K2 is not affected by the kind of solute. Freezing Point Depression A liquid reaches its freezing temperature when its vapor pressure is equal to that of its solid form. Because the presence of the solute lowers the vapor pressure, the freezing point is lowered. The freezing point depression is given by: ? T solution = K f X m solute Again, this equation works only for non-volatile solutes. The temperature of the freezing point decreases by a constant amount for every one mole of solute added per kilogram solvent. This constant (K f) is known as the molar freezing-point constant. Osmosis If you studied biology, you would know that osmosis is the movement of water through a membrane. If two solutions of different molarity are placed on opposite sides of a semipermiable membrane, then water will travel through the membrane to the side with higher molarity. This happens because the water molecules are â€Å"attached† to the solvent molecules, so they cannot travel through the membrane. As a result, the water on the side with lower molarity can more easily travel through the membrane than the water on the other side. The pressure of this osmosis is given in the equation. ? = MRT Where pi is the pressure, M is molarity, R is the gas constant, and T is temperature in Kelvin. Electrolytes and Colligative Properties When one mole of table salt is added to water, the colligative effects are double those that would have occurred if sugar were added instead. This is because the salt dissociates, forming twice as many particles as sugar would. This dissociation, called the Van’t Hoff Factor describes how many particles that are dissociated into the solution and must be multiplied into the Boiling Point Elevation or Vapor Pressure Lowering equations. Different ways of expressing the concentration of solutions Mass Percentage The mass percentage of a component in a given solution is the mass of the component per 100g of the solution. For e. g. , if WA is the mass of the component A, WB is the mass of the component B in a solution. Then, Example: A 10% solution of sodium chloride in water (by mass) means that 10g of sodium chloride are present in 100g of the solution. Volume percentage This unit is used in case of a liquid dissolved in another liquid. The volume percentage is defined as the volume of the solute per 100 parts by volume of solution. For e. g. , If VA is the volume of component A present is Vsol volume of the solution. Then, For e. g. , a 10% solution of ethanol C2H5OH, in water (by volume) means that 10cm3 of ethanol is present in 100cm3 of the solution. Strength of a solution is defined as the amount of the solute in gms, present in one litre of the solution. It is expressed as gL-1. Mathematically, Molarity Molarity of a solution is defined as the number of moles of solute dissolved per litre of solution. Mathematically, For e. g. , If ‘a’ is the weight of the solute (in gms) present in VCC volume of the solution. Then, Molarity is expressed by the symbol M. It can also be expressed as, Normality Normality of a solution is defined as the number of gram equivalents (gm. e) of a solute dissolved per litre of the given solution. Mathematically it is, For e. g. , If a is the weight of the solute (in gms) present in VCC volume of the solution. Then, Normality is expressed by the symbol N. It can also be expressed as, Relationship between molarity and normality The molarity and normality of a solution is related to each other as follows: Molality Molality of a solution is defined as the number of moles of solute dissolved in 1000g of a solvent. Mathematically, it is expressed as Molality is expressed by the symbol m. Molality does not change with temperature. Formality In case of ionic compounds like KCl, CaCO3 etc. Formality is used in place of molarity. It is the number of gram formula masses of solute dissolved per liter of the solution. It is denoted by the symbol F. Mathematically it is given as, Mole Fraction It is the ratio of number of moles of one component (solute or solvent) to the total number of moles of all the components (solute and solvent) present in the solution. It is denoted by the symbol X. Let us suppose that a solution contains two components A and B and suppose that nA moles of A and nB moles of B are present in the solution then, Adding eq (i) and (ii) we get XA + XB = 1 Parts per million (ppm) When a solute is present in very small amounts, its concentration is expressed in parts per million. It is defined as the amount of the solute present in one million parts of the solution. It may be noted that the concentration units like molarity, mole fraction etc. are preferred as they involve the weight of the solute and solvent, which is independent of the temperature. But units like, molarity, normality etc. , involve volume of the solution, hence changes with temperature. How to cite Factors Affecting Solubility, Papers

Saturday, April 25, 2020

The Importance of Nutrition and Exercise Essay Example For Students

The Importance of Nutrition and Exercise Essay The importance of Nutrition, and Exercise Many students today ask why they are so tired all the time. It also seems that people in college become stressed out either because of grades or because of work. All people need to do is get the right amount of sleep, eating well, and exercise in order to feel better about themselves and feel good in general. This is not a short process. Most experts say that it takes about twelve weeks in order to see results. Nevertheless, it is guaranteed that after that duration of time one will see a vast improvement in oneself. Sleep is something that most people take for granted. It is the one thing that people are willing to compromise even more then food or money. It is estimated that 40 to 60 million Americans are sleep deprived. Different people can get by with different amounts of sleep. Some can survive the next day with only a few hours. We will write a custom essay on The Importance of Nutrition and Exercise specifically for you for only $16.38 $13.9/page Order now Then there are others who cannot be called after 9:00 because they need those good solid 10 hours. The average person actually needs anywhere from between 7-9 hours a night. Why does one need sleep? When human bodies do not get enough sleep, they tend to lose strength, the immune system decreases, and there is an increase in blood pressure. As students, it can effect concentration, memory, logical reasoning, and ability to do math. When going to bed it should take about 15 to 20 minutes to fall asleep. If a half-hour has gone by and one still is not asleep, one should get up and do something relaxing such as take a warm bath or watch television. Another key aspect is nutrition. Nutrition is the main thing that keeps the body working. Therefore, if one wants to keep the body working at a certain pace it needs to be fed. However, one needs to know the right foods. Think of the body as a car. People drive cars every day and some drive fast and some drive slow. Nevertheless, all cars need gas eventually. Every car driver knows that the better quality of the gas the better the car drives and performs. Bodies are the same way. For that reason, there is the nutrition pyramid to tell us what our bodies need the most and the least of. It is important to incorporate refined carbohydrates, proteins, vegetables, and fruit to ones diet everyday to ensure that the body works. The body also needs some sugar and fat. Today, people focus on non-fat foods. Sometimes these are not good for the body because in order to make something natural fat-free you have to put in chemicals to alter the original make up of the food. Chemicals are difficult for your body to digest therefore in a case, as this it is best to go natural. Another reason that one needs to eat some fat and sugar is because this is what the body burns when you exercise. Exercise is what separates the boys from the men. In other words, this is the number one thing that must be done to maintain a healthy body. First, one needs to know their body and what their body can endure. That depends on age, weight, and current level of fitness. The last factor determines how fast ones body burns fat. Second, be consistent in your routine. Next, understand that different programs work for different people. People tend to go by the fad when it comes to picking an exercise program. Do some shopping around to see which exercise is not only fit for you but also is something that you will enjoy. Aerobic exercise is an example. Aerobic exercise is exercise, which essentially uses aerobic pathways to provide energy to the muscles involved. It is sometimes called a endurance exercise which means that the heart rate is raised to 70 to 85% of your age predicted Maximum Heart Rate (MHR), and held at that point for a uninterrupted 20 to 30 minutes. Another example is weight-bearing exercises. This includes picking up weights that are a portion of your body weight. .ue48dfed20f62a13ac063f741397517e9 , .ue48dfed20f62a13ac063f741397517e9 .postImageUrl , .ue48dfed20f62a13ac063f741397517e9 .centered-text-area { min-height: 80px; position: relative; } .ue48dfed20f62a13ac063f741397517e9 , .ue48dfed20f62a13ac063f741397517e9:hover , .ue48dfed20f62a13ac063f741397517e9:visited , .ue48dfed20f62a13ac063f741397517e9:active { border:0!important; } .ue48dfed20f62a13ac063f741397517e9 .clearfix:after { content: ""; display: table; clear: both; } .ue48dfed20f62a13ac063f741397517e9 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .ue48dfed20f62a13ac063f741397517e9:active , .ue48dfed20f62a13ac063f741397517e9:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .ue48dfed20f62a13ac063f741397517e9 .centered-text-area { width: 100%; position: relative ; } .ue48dfed20f62a13ac063f741397517e9 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .ue48dfed20f62a13ac063f741397517e9 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .ue48dfed20f62a13ac063f741397517e9 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .ue48dfed20f62a13ac063f741397517e9:hover .ctaButton { background-color: #34495E!important; } .ue48dfed20f62a13ac063f741397517e9 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .ue48dfed20f62a13ac063f741397517e9 .ue48dfed20f62a13ac063f741397517e9-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .ue48dfed20f62a13ac063f741397517e9:after { content: ""; display: block; clear: both; } READ: LaptopsPalm(99) Essay To remain in shape one does not have .