Premium Essay

Practice Questions

In: Other Topics

Submitted By angelicdreams
Words 1390
Pages 6
General Chemistry I
Chapter 6 and 7 Practice questions

1. A sample of helium gas occupies a volume of 38 L at 780 torr and 25 øC. What volume would the gas occupy at standard temperature and pressure? a. 40 L b. 38 L c. 36 L d. 34 L e. 25 L

2. Standard conditions ("STP") for a gas are: a. 1.00 torr, 0 øC b. 760 atm, 0 øC c. 760 mmHg, 25 øC d. 1.00 atm, 273.15 øC e. 760 torr, 273, 15 K

3. 2.24 L NH3(g) at 2.0 atm and 0 øC: a. contains 0.050 mole NH3 b. weighs 1.70 g c. contains 6.02 Á 1022 molecules of NH3 d. contains 3.6 Á 1023 H atoms e. contains 3.6 Á 1023 N atoms

4. If gas volume is doubled but the temperature remains constant: a. the pressure stays the same b. the molecules move faster c. the kinetic energy increases d. the molecules move slower e. none of these answers

5. A sample of gas has a volume of 2.5 L at 30 øC and 720 mmHg. What will be the volume of this gas at 22 øC and 750 mmHg? a. 1.8 L b. 3.3 L c. 2.7 L d. 2.3 L e. 2.5 L

6. What mass of water vapor would occupy a volume of 54 L at 200 øC and 76 torr, assuming ideal behavior? a. 1.8 g b. 2.5 g c. 4.3 g d. 5.4 g e. 7.2 g

Page 2

7. Halothane is one of the modern anesthetics which is nonflammable and relatively safe for patients. What is the molar mass of halothane if 456 milligrams is 52.8 milliliters at 22 øC and 805 torr? a. 1.06 Á 103 b. 209 c. 197 d. 221 e. 14.7

8. Calculate the volume of H2(g) expressed at STP, required to react with 3.00 L of CO(g) at STP in the following reaction: 3 CO(g) + 7 H2(g) Ģ C3H8(g) + 3 H2O(l) a. 3.00 L b. 7.00 L c. 10.0 L d. 22.4 L e. 1.00 L

9. When 8.21 L of C3H8(g) burn in oxygen, how many liters of oxygen are consumed? All gas volumes are measured at the same temperature and pressure but not

Similar Documents

Premium Essay

Practice Question

...9.1 Anti Semitism — * def: Hostility/Hatred towards the Jewish people * Now a new feeling: Jewish Communities have face judgement and violence all throughout history. * From time to time, Jewish population has experienced deliberate attacks (pogroms) yet have managed to survive as a group and as a religion. * Nazi policy towards the Jews was the most brutal and horrific example of anti-Semitic behaviour in history * Nazis developed a deliberate policy to kill the Hews who lived in Germany — In 1922, 60% of the worl’d’s population of Jews occupied land in German and its area. By 1945, 2/3 of the Jewish population had been killed * By the 19th Century: German-Jews had won greater acceptance in that they made very important contributions to the intellectual, financial, educational and cultural life of the nation. * During WW1, 100 000 Jewish soldiers died during the conflict. * In the Weimar Republic, Jews enjoyed equal rights with all other Germans and some even rose to high positions in the civil service and the government. * Late 19th Century: Jews represented a challenge to the concept of the nationalism, especially when there was a development of the Volkisch movement. * Bt the start of the 20th Century, ideology of the racially pure was being embraced by all, and the Jews were not part of it. * German Historian Heinrich von Treitschke in the 1880’s said that ‘The Jews are our misfortune’ — A quote which...

Words: 3042 - Pages: 13

Premium Essay

Practice Questions for Microeconomics

...Practice Questions and Answers from Lesson I-7: Elasticity Practice Questions and Answers from Lesson I-7: Elasticity The following questions practice these skills:  Use the midpoint method for calculating percent change.  Compute price elasticity of demand.  Identify elastic and inelastic demand according to the price elasticity of demand.  For elastic demand, apply the negative relation between price and revenue.  For inelastic demand, apply the positive relation between price and revenue.  Remember demand is more elastic when there are more substitutes or closer substitutes.  Compute the price elasticity of supply.  Compute cross-price elasticities of demand.  Relate cross-price elasticities of demand to gross substitutes and gross complements.  Identify elastic and inelastic portions of a linear demand curve.  Compute income elasticity of demand. Question: Amazon.com, the online bookseller, wants to increase its total revenue. One strategy is to offer a 10% discount on every book it sells. Amazon.com knows that its customers can be divided into two distinct groups according to their likely responses to the discount. The accompanying table shows how the two groups respond to the discount. Group A (sales per week) 1.55 million 1.65 million Group B (sales per week) 1.50 million 1.70 million Volume of sales before the 10% discount Volume of sales after the 10% discount a. Using the midpoint method, calculate the price elasticities of demand for group A and group...

Words: 4184 - Pages: 17

Free Essay

Comptia a+ Practice Questions

...CompTIA A+ 801 Practice Questions Question 1 Objective: Identify types of network cables and connectors  Which of the following is the definition of an ST fiber connector? A. Synthetic Tip ​B. Standard Tip ​C. Steel Tip D. Straight Tip Question 2 Objective: Given a scenario, demonstrate proper communication and professionalism  Customer satisfaction is best achieved by: A. never minimizing the customer’s problems. ​B. being defensive. ​C. talking to coworkers while interacting with customers. D. being judgmental. Question 3 Objective: Install and configure storage devices and use appropriate media  SCSI hard drives can spin at a maximum speed of: A. 5,400 rpm. ​B. 7,200 rpm. ​C. 10,000 rpm. D. 15,000 rpm. Question 4 Objective: Identify connector types and associated cables  Which of the following video connectors can display the HIGHEST resolution? A. Composite ​B. HDMI ​C. VGA D. S-video Question 5 Objective: Given a scenario, demonstrate proper communication and professionalism  While attempting to resolve an issue, a customer talks to the technician about a recent activity that has no relevance on the repair. Which of the following is the MOST appropriate response? A. Ask the customer for a timetable about recent activities. ​B. Let the costumer complete their statement and then continue resolving the issue. ​C. Document the customer’s statement and continue resolving the issue. D. State that the activity is not relevant to the repair...

Words: 907 - Pages: 4

Free Essay

Baker Hughes: Foreign Corrupt Practices Act Study Questions

...socioeconomic groups. Corruption also causes division among various ethnic groups as people become bitter, suspicious, jealous and distrusting. 2. Is the “optimal” amount of bribery payments for a country equal to zero? Yes, the optimal amount of bribery payments for a country is equal to zero. Since bribery and corruption have long term negative impacts, and optimal means the most favorable, it is the most favorable option for a country to have zero bribery payments. By having zero bribery payments, a country will in theory not be subject to any of the negative impacts of bribery. 3. Should the board of directors be actively involved in policing foreign corrupt practices or is this a management issue? It is also the responsibility of the board of directors to be involved in policing foreign corrupt practices. If a company expects only the management to be...

Words: 1031 - Pages: 5

Premium Essay

Economics Practice Question

...1. Which of the following is NOT an application of supply and demand analysis? a. Understanding changing world economic conditions and their effects on prices. b. Evaluating the effects of government price controls on the agricultural industry. c. Determining how taxes affect consumers’ spending patterns. d. all of the above. e. none of the above. 2. A supply curve reveals a. the quantity of output consumers are willing to purchase at each possible market price. b. the difference between quantity demanded and quantity supplied at each price. c. the maximum level of output an industry can produce, regardless of price. d. the quantity of output that producers are willing to produce and sell at each possible market price. 3. Plastic and steel are substitutes in the production of body panels for certain automobiles. If the price of plastic increases, with other things remaining the same, we would expect a. the price of steel to fall. b. the demand curve for steel to shift to the right. c. the demand curve for plastic to shift to the left. d. nothing to happen to steel because it is only a substitute for plastic. e. the demand curve for steel to shift to the left. 4. Which of the following would shift the demand curve for new textbooks to the right? a. A fall in the price of...

Words: 5006 - Pages: 21

Free Essay

Practice Questions Supply Chain

...Practice Examination Questions    QUESTIONS ON SUPPLY CHAIN MANAGEMENT    SCM 1: In a manufacturing plant, suppose fixed cost is $ 10,000/month. Variable Cost of  production  is  $  0.80  per  unit  and  the  selling  price  is  $  1.00  per  unit.  What  is  the  breakeven point?    Answer: 50,000 units per month    Break Even Point = Fixed Cost / (Selling Price – Variable Cost) = 10000/((1.0 ‐0.8) =  50,000    SCM 2: In a manufacturing plant, suppose fixed cost is $ 5,000/month. Variable Cost of  production is $ 0.60 per unit and the selling price is $ .95 per unit. The plant produces  20,000 units per month. What is the profit per month as a percentage of the total cost  of production? The total cost includes fixed and variable costs.    Answer: 11.76%    Total Cost of production = 5,000 + 20,000 * 0.6 = 17,000  Total Revenue = 20,000 * 0.95 = 19,000  Profit as a % of cost = (19,000 – 17,000)/17,000 = 11.76%    Note: A similar analysis will be required to find the selling price if the desired % of profit  is given.     SCM  3:    A  manufacturing  company  is  considering  two  suppliers  (A  and  B)  to  supply  a  component RQ‐237 for next one year. They have received the following quotes from the  two suppliers.    Supplier A:  Fixed cost/year = $ 10,000; Variable cost per unit = $ 0.8  Supplier B:  Fixed cost/year = $ 8,000;   Variable cost per unit = $ 0.9    Which supplier should be used?    Answer:  The indifference point = 20,000  Use Supplier B if the demand is less than 20...

Words: 296 - Pages: 2

Premium Essay

Practice Questions Exam 1

...Chapter 1 True / False Questions   1. Inflation is assumed to be a temporary problem that does not affect financial decisions.  FALSE 2. Financial Capital is composed of long-term plant and equipment, as well as other tangible investments.  FALSE 3. Real Capital is composed of long-term plant and equipment.  TRUE  4. During the 1930s, financial practice revolved around such topics as the preservation of capital, maintenance of liquidity, reorganization of financially troubled corporations and bankruptcy.  TRUE   5. In the mid 1950s, finance began to change to a more analytical, decision-oriented approach.  TRUE   6. Recently, the emphasis of financial management has been on the relationship between risk and return.  TRUE    7. The most common partnership arrangement carries limited liability to the partners.  FALSE   8. In terms of revenues and profits, the corporation is by far the most important form of business organization in the United States.  TRUE 9. Dividends paid to corporate stockholders have already been taxed once as corporate income.  TRUE  10. One advantage of the corporate form of organization is that income received by stockholders is not taxable since the corporation already paid taxes on the income distributed.  FALSE   11. A corporation must have more than 75 stockholders to qualify for Subchapter S designation.  FALSE   12. Profits of a Subchapter S corporation are taxed at corporate tax rates.  FALSE ...

Words: 7684 - Pages: 31

Premium Essay

Accounting Ii Practice Questions

...E13-1 Pioneer Corporation had these transactions during 2011. | (a)   | Issued $50,000 par value common stock for cash. * Cash inflow from financing activities. | | (b)   | Purchased a machine for $30,000, giving a long-term note in exchange. * Noncash investing and financing activities. | | (c)   | Issued $200,000 par value common stock upon conversion of bonds having a face value of $200,000. * Noncash financing activities. | | (d)   | Declared and paid a cash dividend of $18,000. * Cash outflow from financing activities. | | (e)   | Sold a long-term investment with a cost of $15,000 for $15,000 cash. * Cash inflow from investing activities. | | (f)   | Collected $16,000 of accounts receivable. * Cash inflow from operating activities. | | (g)   | Paid $18,000 on accounts payable. * Cash outflow from operating activities. | | Classify transactions by type of activity Instructions Analyze the transactions and indicate whether each transaction resulted in a cash flow from operating activities, investing activities, financing activities, or noncash investing and financing activities. E13-2 An analysis of comparative balance sheets, the current year's income statement, and the general ledger accounts of Gagliano Corp. uncovered the following items. Assume all items involve cash unless there is information to the contrary. | (a)   | Payment of interest on notes payable.Operating activity | | (b)   | Exchange...

Words: 351 - Pages: 2

Premium Essay

Fpc1 Microeconomics Practice Questions

...Page:of 21                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       1 The economic way of thinking 1) Which economic question depends on the incomes that people earn and the prices they pay for goods and services? A) What? B) How? C) For whom? D) Why? E) Where? 2) Computers and insurance coverage produced in the United States and sold to people in other nations are categorized as A) U.S. consumption goods and services. B) foreign capital goods. C) U.S. government goods and services. D) U.S. exports of goods and services. E) U.S. imports of goods and services. 3) Economists classify energy and water as part of which factor of production? A) land B) labor C) capital D) entrepreneurship E) land if undeveloped and capital if developed 4) A circular flow model shows the interrelationship between the ________ market and the ________ markets. A) household; goods B) household; factor C) business; household D) expenditure; income E) goods;...

Words: 2456 - Pages: 10

Premium Essay

Practice Test Question 2

...In recent decades there has been a globalization process driven by the market, especially due to the rapid advances in information exchange and telecommunications. This process involves the increasing integration, to varying degrees, global markets for goods, services, capital, technology and labor, which has led to greater openness and freer movement of factors of production. This allows the globalization of the economy through trade, present new opportunities for growth and development. But these countries are not exempt of difficulties and problems in being able to exercise these trade shares without being harmed by their lower weight in the global economy. The World Trade Organization is an international organization that is responsible for regulating the global rules governing trade between countries, and its main function is to ensure that trade flows as smoothly and freely as possible. If we look at the composition of the members of the WTO, three quarters of its members are developing or least developed countries, and takes place in 2000 a new round of negotiations has passed some called Doha Development where developing countries raise a number of issues to promote their development and trade, among the measures taken are: longer terms for enforcing agreements and commitments; measures to increase their trading opportunities and assistance to help them build the necessary infrastructure to carry out the tasks related to the WTO; agreements on non-agricultural...

Words: 816 - Pages: 4

Free Essay

Ethic Assignment

...using guidelines regarding presentation practice and when you practice presentation the way you give them it will turn out how you plan. Even the best presentation can be destroyed by a bad presenter from the person who mumbles, to the one who talks too fast, to the one who just wasn’t prepared. But perhaps nothing is as irritating as the person who misuses and abuses. There are seven step I learn to go over before giving a presentation and what are the solution to making those problems better but the top three of the mistakes are “ Not knowing your topic:, Ignoring your audience” and “Not Practicing” . These steps will not only prepare me for presentation in school but also increase my skills for my career. The first mistake is not knowing your topic. Not addressing assignment or problem and missing main parts of topic. You can memorized the content but when someone ask you a question about it, you panic and don’t know how to answer it. You never prepared for questions and all you know about this topic is what is written on the slides. A better solution so this don’t happen is to know your material as well, that you could easily do the presentation without an electronic enhancement such as PowerPoint. Nothing will ruin your credibility as a presenter faster, than not knowing everything about your topic. Use key words and phrases and include only essential information to keep the audience focused and interested. Be prepared for questions and know the answers. Knowing your material...

Words: 740 - Pages: 3

Premium Essay

Business Quality - 5 Practice Principles

...Part 3: Business Quality – 5 Practice Principles By: Gautam Borah Abstract: “Business Quality – The Fundamentals”, is the first treatise in the series of Business Quality. The first part contended a new Postulate on Quality which addresses the need of an organization and customer in the current global scenario of business. The title “Business Quality - The Delivery Model” is the second treatise on the subject of Business Quality. This is the third part titled “Business Quality – 5 Practice Principles”. This part delineates the principles on which the Business Quality is predicated. The treatise proposes 5 principles which can help an organization to create the DNA of Business Quality. Introduction The first treatise in this series of Business Quality discussed the notion of Quality in the context of current global business environment and a new postulate has been reprised. The second treatise delineated a Delivery Model for the postulate. This article is the Part 3 of the same series which illustrates the Practice Absolutes of Business Quality. The intrinsic notion of the practice principles The principles presented in this article are at practice levels. Unlike strategic principles, the practice principles aim at execution and will assist the organizations to build a culture of business Quality. Besides, practiced with a suitable monitoring and measurement system, these principles will act as the operational building blocks to sustain the Business Quality initiative...

Words: 842 - Pages: 4

Premium Essay

Math Lab Appendix B

...Editor tutorial website: http://corptrain.phoenix.edu/EEGT/EEGT-01-INTRO.asp Caution: Equations created with Equation Editor do not transfer well to classroom posts. To alleviate this problem you may submit your equations as attachments. Use Equation Editor for assignment problems that require you to enter an equation or expression in an appendix. Using MyMathLab® MyMathLab® allows you to submit your work in an easy-to-use web-based application. University administrators have carefully selected problem sets that align with the goals and objectives for this course. MyMathLab® is the platform on which you complete these problem sets and take quizzes and tests. MyMathLab® provides instant feedback, tutorials, animations, and extra practice problems to help solidify learning and avoid misconceptions. Install the Math XL® player and media plugins. To begin the installation, click the MyMathLab® link on your student website under the Week One materials section. Your personal MyMathLab® homepage will appear. In the welcome message at the top of the page is a link to access the Installation Wizard. Follow the installation directions. Should you need technical assistance, contact the...

Words: 1727 - Pages: 7

Premium Essay

Training and Development

...A1 - Course Description: The introduction to Consumer Lending Course is designed for Financial/Credit Service staff that has limited or no experience in consumer lending and requires new and practical knowledge in Consumer Lending & Interviewing. This 7 hour full day session will equip you with the theory, knowledge and skill to provide yourself to conduct a proper lending experience for your members/clients. Strength of this course is to provide the best service to your member/client and the ability to apply this to your every day consumer lending environment. Trainees: 25 Financial/Credit Service Staff Members Time: 9 a.m to 5 p.m | * A2 – Course Outline: Time | Module Title | Module objective/s | 9:00AM – 9:30AM | Introduction * Trainer & Trainee Introductions * Housekeeping rules * Agenda | Trainer will begin by introducing herself with trainees introduction of themselves with a brief description so they are familiar with who they will be working with. | 9:30AM – 10:30AM | Module 1 - Retail Lending -Introduction to the Loan Portfolio, the definition, profitability, cross selling, 8 C’s of Credit & matching. | Trainees will listen closely to the topics discussed by taking notes of the 8 C’s of Credit. | 10:30AM – 10:45 | BREAK | BREAK | 10:45AM – 11:15 | Trainer will begin describing the lending process and reviewing the list of responsibilities assigned as a member consultant/lender. As a short group...

Words: 3567 - Pages: 15

Premium Essay

Anticipated Outcome of Fgm

...There is high prevalence of FGM expected in Upper Egypt which is an area with low socioeconomic class, high illiteracy rates and low gdp per capita. It is expected that working women who hold an educational degree even the circumcised from them will refuse to continue the practice of FGM. The occupational status of females is expected to have a direct relation with FGM practice and the prevalence is expected to be high among unemployed females. The relation between access to information and prevalence of FGM can be anticipated, areas with little to no access to information or awareness programs will have the highest prevalence. Messages delivered through internet or television may not be accessible to these areas. The study is hoped to stress on the importance of delivering awareness messages not only through media but also through regional home visits, seminars and events for areas with little access to information. It is anticipated that the research will have a clear direct correlation between female education and practice of FGM. It is hoped that the local authorities and public education sectors will take in consideration female education and facilitating continuing education for those who have dropped out. Ethical concerns Researchers will need to go in pairs having at least one female in each pair to be able to hold private interviews with females as the social background of interviewed sample may not accept women talking to strangers. The permission of...

Words: 805 - Pages: 4