SCIN131Lab_01-2
3 Pages

SCIN131Lab_01-2

Course Number: SCIN 131, Summer 2011

College/University: American Public University

Word Count: 1046

Rating:

Document Preview

Student Name: Shane Reynolds Student ID: 4139537 Date: 16 Sept 11 Course and Section Number: SCI 131 Lesson 1 Lab: Laboratory Safety & Differences in Density due to Temperature PART 1 Begin by viewing the following Thinkwell video 27.1.1 CIA Demonstration: Laboratory Safety After you watch the above video, check out the safety contract at http://www.flinnsci.com/Documents/miscPDFs/Safety_Contract.pdf and...

Unformatted Document Excerpt
Coursehero >> West Virginia >> American Public University >> SCIN 131

Course Hero has millions of student submitted documents similar to the one
below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.

Course Hero has millions of student submitted documents similar to the one below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.

Name: Student Shane Reynolds Student ID: 4139537 Date: 16 Sept 11 Course and Section Number: SCI 131 Lesson 1 Lab: Laboratory Safety & Differences in Density due to Temperature PART 1 Begin by viewing the following Thinkwell video 27.1.1 CIA Demonstration: Laboratory Safety After you watch the above video, check out the safety contract at http://www.flinnsci.com/Documents/miscPDFs/Safety_Contract.pdf and then answer the questions below in sufficient detail: (a) (1 pts) Describe some general lab safety rules that were discussed in this video and reading. Answer: Some general safety rules when in lab are to cover up. You should wear goggles, gloves, long pants, and no open toed shoes. You should even invest in a lab coat for added protection. You should know your surroundings, such as where the open shower is as well as the fire extinguisher. (b) (1 pts) Briefly discuss the importance of safety in the chemistry lab, and why it is important to know the location of safety equipment in the lab. Answer: It is very important to know the location of safety equipment in the lab. If during the lab a fire were to break out, if you already know where the extinguisher is then you have a better chance of getting to it quickly and putting the fire out. It is also very important to be safe and not horseplay because that is how accidents can happen that could lead to an accident that may require the use of the fire extinguisher or the shower. (c) (10 pts) Indicate whether the following statements are true or false in the blank provided. If the video did not indicate a direct answer to some of these, be sure to read the link above, and then you may be required to do a little searching on the internet to find the correct answer (cite your sources!): _F__1. It is not necessary to wear safety glasses or goggles while working in the laboratory if you wear eye glasses already. __T_2. Locate the fire extinguisher before working in the laboratory __T_3. Locate the first aid equipment before working in the laboratory __F_4. It is generally OK to taste chemicals in the laboratory as long as you are careful. __F_5. Never drink or smoke while in the laboratory __T_6. Consider all chemicals to be hazardous unless instructed otherwise _F__7. Open-toed shoes are generally OK to wear while in the laboratory as long as you are careful. _T__8. If any chemical contacts your skin or eyes, flush immediately with water, and then notify your laboratory instructor. _F__9. After completing an experiment, all chemical wastes should be dumped in the sink. __T_10. Never directly smell a gas or vapor; instead, waft a gas toward your nose using a cupped hand. __T_11. Never point the open end of a test tube toward yourself or your neighbor when heating a chemical. __T_12. Clean up all broken glassware immediately. _T__13. Lubricate the hole in a rubber stopper with glycerol or water before inserting glass tubing or a thermometer into the stopper. _T__14. Pour acids into water-not water into acid- because the heat of solution will cause the acid to splatter. _T__15. Do not use alcohol or other liquids organic near an open flame. __T_16. Do not perform unauthorized experiments. __T_17. Obey the special safety precautions mentioned in each experiment. __T_18. Notify the instructor immediately in case of an accident. _F__19. If you are wanting to pick up a piece of hot glassware (like a beaker or flask), you should first pour cold water on it. _F__20. You should return all unused chemicals to their original containers. (d) (3 pts) In the event of a chemical spill in the laboratory that involves broken glass, briefly explain the correct order of steps that should be taken by the student to address this situation. Answer: The very first step for a student to take after any laboratory accident is going to be to notify the instructor. The instructor will be able to determine the severity of the spill and will either tell the student that it is safe for them to clean it up themselves, or if the laboratory needs to be evacuated. As far as the broken glass, you should never handle broken glass with bare hands. Glass should be brushed into a dustpan and placed in a pre-designated container. PART 2 Please watch the following Thinkwell video: 1.2.3 CIA Demonstration: Differences in Density Due to Temperature After you watch the above video, answer the questions below in sufficient detail: (a) (2 pts) Explain what happened when the hot and cold water were mixed together in this experiment. WHY did this occur? What is the underlying concept or theory here? Answer: The first thing I noticed when the center piece separating the water was pulled was that it seemed that the cold blue water quickly rushed under the hot red water, while the hot red water seemed to rush to the top of the cold blue water. This occurred because the hot water is less dense than the cold water, therefore it will rise to the top. The overall concept here is that hot water has more energy than cold water and hot water moves faster than cold water and takes up more space. Density = mass/volume. (b) (3 pts) Suppose that instead of mixing water at different temperatures, you instead had two beakers of different liquids at the same temperature. In Beaker A, you have 50 mL of a blue liquid that has a mass of 65 grams. In Beaker B you have 75 mL of a yellow liquid that has a mass of 70 grams. Assuming no chemical reaction occurs and the liquids are capable of safely and thoroughly mixing together with one another, what would you expect to happen based on what you learned in this lab? What will the beaker look like when you pour them together? Explain your reasoning and show your work. Blue liquid density = 65 grams/50 mL Density = 1.3 g/mL Yellow liquid density = 70 grams/ 75mL Density = .93 g/mL After the liquids are combined the yellow less dense liquid will rise to the top, while the blue more dense liquid will sink to the bottom. Answer: References http://www.squ.edu.om/Sci/chem/support/Safety Guidelines.pdf http://www.labmanager.com/?articles.view/articleNo/1128/article/The-Correct-Way-toInsert-Glass-Tubing-or-a-Thermometer-into-a-Stopper DON'T FORGET TO INCLUDE REFERENCES!!!

Find millions of documents on Course Hero - Study Guides, Lecture Notes, Reference Materials, Practice Exams and more. Course Hero has millions of course specific materials providing students with the best way to expand their education.

Below is a small sample set of documents:

American Public University - SCIN - 131
Student Name: Shane ReynoldsStudent ID: 4139537Date: 29 Sept 11Course and Section Number: SCI 131Lesson 2 Lab: Weighing on an Analytical Balance & DistillationPART 1Begin by viewing the following Thinkwell video27.1.9 CIA Demonstration: Weighing on
South Carolina - JOUR - 201
Journalism 11/5/12TEST REVIEW-Pg 239 know what web 2.0 means-Know the differences between social and traditional media-pg 242 know what agenda setting is a role in media play that decides which topics to cover andwhich topics are deemed as discussion
South Carolina - JOUR - 201
Journalism 10/21/12Journalism How News is Created1. Its Gathered A.P. -> AP Day book2. Beat is political, sports, and entertainment news.3. Its Produced4. And its DistributedTypes of Journalism:-Alternative: covers stories that more traditional new
South Carolina - JOUR - 201
JournalismChapter 4Music and Recordings-the Recording Arts-radio is the most widely used media, it doesnt take skills, no electricity, there is wind upelectricity. Its the most far reaching mass media we have-the air waves belong to the public, they
Keller Graduate School of Management - ACCOUNTING - AC 555
(159)Capital Structure AnalysisPettit Printing Company has a total market value of $100 million, consisting of 1million shares selling for $50 per share and $50 million of 10% perpetual bonds nowselling at par. The companys EBIT is $13.24 million, and
Keller Graduate School of Management - ACCOUNTING - AC 555
Step 1Physical UnitsWork in process, beginning (given)Step 2 (equivalent units)TransferredDirectConversionin costsMaterialsCosts7,500Started during current period (given)18,500To account for26,000Good units completed and transferred outdur
Keller Graduate School of Management - ACCOUNTING - AC 555
4-20The following situations involve the provision of nonaudit services. Indicate weatherproviding the service is a violation of AICPA rules or SEC rules including SarbanesOxley requirements on independence. Explain your answer as necessary.1) Providin
Keller Graduate School of Management - ACCOUNTING - AC 555
Homework Week 1 Chapter 18Problem 1:You are the Senior Accountant for the Patty Corporation which has several divisions.They each keep their own accounting books and have chosen the appropriate method ofrevenue recognition based on their operations.P
Keller Graduate School of Management - ACCOUNTING - AC 555
Homework Week 1 Chapter 18Problem 1:You are the Senior Accountant for the Patty Corporation which has several divisions.They each keep their own accounting books and have chosen the appropriate method ofrevenue recognition based on their operations.P
Keller Graduate School of Management - ACCOUNTING - AC 555
Homework Week 2 Chapter 19Problem 1:California Surplus Inc. qualifies to use the installment-sales method for tax purposes and soldan investment on an installment basis. The total gain of $75000 was reported for financialreporting purposes in the peri
Keller Graduate School of Management - ACCOUNTING - AC 555
Chapter 18Lease FinancingANSWERS TO BEGINNING-OF-CHAPTER QUESTIONS18-1An operating lease is one that typically requires the lessor to servicethe equipment, that has a lease term that is much shorter than the lifeof the equipment, and that can be can
Keller Graduate School of Management - ACCOUNTING - AC 555
CHAPTER 16Dilutive Securities and Earnings Per ShareASSIGNMENT CLASSIFICATION TABLETopicsQuestionsBriefExercisesExercisesProblemsCases1.Convertible debt andpreferred stock.1, 2, 3, 4, 5,6, 71, 2, 31, 2, 3, 4, 5,6, 7, 8, 24,25212.Warr
Keller Graduate School of Management - ACCOUNTING - AC 555
Chapter6619a. Whichofthefollowingbestdescribesthereasonwhyanindependentauditor reportsonfinancialstatements?1. Amisappropriationofassetsmayexist,anditismorelikelytobedetectedbyindependentauditors.2. Differentinterestsmayexistbetweenthecompanyprepari
Keller Graduate School of Management - ACCOUNTING - AC 555
1.Outright purchase of Smithon stock:a.Should Mr. Jones purchase the stock of Smith outright, leaving Smithonintact? What about issuing debt in his Johnson Services company to pay for theSmith Company-would that raise debt to equity issues?Purchasin
Keller Graduate School of Management - ACCOUNTING - AC 555
a. Should Mr. Jones purchase the stock of Smith outright, leaving Smithon intact? Whatabout issuing debt in his Johnson Services company to pay for the Smith company-would that raise debt to equity issues?AstraightpurchaseofSmithonisthesimplesttransacti
Keller Graduate School of Management - ACCOUNTING - AC 555
AprilUnit dataBeginning inventoryProduction500Sales350Variable costsManufacturing cost per unit produced$ 10,000Operating (marketing) cost per unit sold3,000Fixed costsManufacturing costs$2,000,000Operating (marketing) costs600,000May150
Keller Graduate School of Management - ACCOUNTING - AC 555
Chapter 19 reintroduces us to our old friend, preferred stock, covered in FI515; it provides a brief yetsuccinct overview of this hybrid (stock with debt attributes). Read thoroughly for an excellent review.WarrantsAnother form of hybrid security is th
Keller Graduate School of Management - ACCOUNTING - AC 555
Con # 111212003416 John 11 pm 121211
Keller Graduate School of Management - ACCOUNTING - AC 555
WIP Beginningstartedto account forcompleted & trans(d.m. 100% C.C. 75%)started & completednormal spoilage 38,000 X 5%abnormal spoilageWIP ending 8,000 (100% direct materials 65% conversion cost)accounted forWIP beginningcost addedtotal costco
Keller Graduate School of Management - ACCOUNTING - AC 555
Enrons and Andersens Case EvaluationEnron Corporation went from being one of the greatest and most profitablecompanies in the world, to becoming the greatest story of fraud in the United States. Aswe all know, the Enron Corporation case impacted the Un
Keller Graduate School of Management - ACCOUNTING - AC 555
absorption and variable costing Page 300 - 302Variable costing is a method of inventory costing in which all variable manufacturingcosts (direct & indirect) are included as inventorial costs. All fixed manufacturing costsare excluded from inventoriable
Keller Graduate School of Management - ACCOUNTING - AC 555
http:/www.coursehero.com/file/6472943/MiniCase-Week-2-Spreadsheet/FIGURE 15-5 Estimating Strasburgs Optimal CapitalStructure (Millions of Dollars)Notes:1. The percent financed with equity is: ws = 1 wd.2. The interest rate on debt, rd, is obtained fr
Keller Graduate School of Management - ACCOUNTING - AC 555
3.1 DSODSO =ReceivablesAverage Sales per dayReceivables =Receivables =DSO X Average Sales per day20 X $20,000 =3.2 Debt RatioThe equity multiplier is 2.5. This means that for every dollar of equity the company has $2.5 of assetsEquity Multiplier
Keller Graduate School of Management - ACCOUNTING - AC 555
Problem 16.5A chain of appliance stores. APP Corporation , purchases inventory with a net price of $500,000 each day.The company purchases the inventory under the credit terms of 2/15, net 40.APP always takes the discount but takes the full 15 days to
Keller Graduate School of Management - ACCOUNTING - AC 555
Chapter 2,Problem 2-7Who is responsible for establishing auditing standards for audits of public companies? Who isresponsible for establishing auditing standards for audits of private companies? Explain.Before the Sarbanes-Oxley Act was wstablished in
Keller Graduate School of Management - ACCOUNTING - AC 555
(172)Interest Rate ParitySix-month T-bills have a nominal rate of 7%, while default-free Japanese bonds thatmature in 6 months have a nominal rate of 5.5%. In the spot exchange market, 1 yenequals $0.009. If interest rate parity holds, what is the 6-m
Keller Graduate School of Management - ACCOUNTING - AC 555
(159)Capital Structure AnalysisPettit Printing Company has a total market value of $100 million, consisting of 1million shares selling for $50 per share and $50 million of 10% perpetual bondsnow selling at par. The companys EBIT is $13.24 million, and
Keller Graduate School of Management - ACCOUNTING - AC 555
(203) New Stock IssueThe Edelman Gem Company, a small jewelry manufacturer, has been successful and has enjoyed a goodgrowth trend. Now Edelman is planning to go public with an issue of common stock, and it faces theproblem of setting an appropriate pr
Keller Graduate School of Management - ACCOUNTING - AC 555
Mini CaseAssume you have just been hired as a business manager of PizzaPalace, aregional pizza restaurant chain. The companys EBIT was $50 million last year andis not expected to grow. The firm is currently financed with all equity, and it has 10milli
Keller Graduate School of Management - ACCOUNTING - AC 555
Consolidated Balance SheetAssetsCont.Cont.Note 1 :Significant Accounting PolicesReporting EntityEl Mundo de las decoraciones is a manufacturer of blinds located in Diriamba,Nicaragua. The company was offcialy established on June 11, 2001. The comp
Keller Graduate School of Management - ACCOUNTING - AC 555
Netflix, Inc.Netflix (Nasdaq: NFLX) is the world's largest online DVD movie rental service offeringmore than one million members access to more than 15,000 titles. The companys appealand success are built on providing the most expansive selection of DV
Keller Graduate School of Management - ACCOUNTING - AC 555
1. (TCO D) Which of the following statements is most CORRECT?(a) If new debt is used to refund old debt, the correct discount rate to use in the refunding analysis is thebefore-tax cost of new debt.(b)The key benefits associated with refunding debt are
Keller Graduate School of Management - ACCOUNTING - AC 555
1. (TCOC) Brammer Corp.'s projected capital budget is $1,000,000, its target capital structure is 60percent debt and 40 percent equity, and its forecasted net income is $550,000. If the company follows aresidual dividend policy, what total dividends, i
Keller Graduate School of Management - ACCOUNTING - AC 555
A123456789101112131415161718192021222324252627282930313233343536BCDEFGHI3/30/2003Chapter 20Problem 20.3The Edelman Gem Company, a small jewelry manufacturer, has been successful and has enjoyed a good growth
Keller Graduate School of Management - ACCOUNTING - AC 555
(204)Refunding AnalysisJan Volk, financial manager of Green Sea Transport (GST), has been asked by her bossto review GSTs outstanding debt issues for possible bond refunding. Five years ago,GST issued $40,000,000 of 11%, 25-year debt. The issue, with
Keller Graduate School of Management - ACCOUNTING - AC 555
Proble 5.7FVPMTinPV1000504.25%16?1,085.80Problem 6.6a.B=ra -rfrm-rfb.r=rf + B(rm-rf)==12% - 5%10% - 5%=r=5% +2% (10%-5%)r=5% +2%(5%)r=5% + 10%r=15%Problem 6.7b.ri = rf + (rm rf)* Bri = 9% + (14% - 9%) * 1.3 =15.50%rf (1) inc
Keller Graduate School of Management - ACCOUNTING - AC 555
E15-13 (Stock Split and Stock Dividend) The common stock of Warner Inc. iscurrently selling at $110 per share. The directors wish to reduce the share price andincrease share volume prior to a new issue. The per share par value is $10; book valueis $70
Keller Graduate School of Management - ACCOUNTING - AC 555
E16-1 (Issuance and Conversion of Bonds) For each of the unrelated transactions describedbelow, present the entry(ies) required to record each transaction.1. Coyle Corp. issued $10,000,000 par value 10% convertible bonds at 99. If thebonds had not been
Keller Graduate School of Management - ACCOUNTING - AC 555
Chapter # 101.Distinguish between realized gains and losses and recognized gains andlosses.Realized gain or realized loss is the total amount of either gains or losses thatcome from the sale of securities. Having a realized loss, means that the trade
Keller Graduate School of Management - ACCOUNTING - AC 555
E17-1 (Investment Classifications) For the following investments, identifywhether they are:1. Trading2. Available-for-Sale3. Held-to-MaturityEach case is independent of the other.(a) A bond that will mature in 4 years was bought 1 month ago when the
Keller Graduate School of Management - ACCOUNTING - AC 555
1. John Smith tax issues:a. How is the $300,000 treated for purposes of Federal tax income?The $300,000 is taxable income; the reason is that the IRS always collects taxeswhen we receive a lump sum payment as compensation for negligence, injury or othe
Keller Graduate School of Management - ACCOUNTING - AC 555
CHAPTER # 212.What are the eligibility requirements that a corporation must meet in orderto qualify under Subchapter S?1.2.3.4.5.6.2.3.The company Needs to be either a domestic corporation, or a domestic entityeligible to elect to be treated
Alabama - CHEM - 450
CBE450 HW5 solution1CBE450 HW5 solution2CBE450 HW5 solution3CBE450 HW5 solution4CBE450 HW5 solution5CBE450 HW5 solution6
Alabama - CHEM - 450
CBE 450 HW4 solution1CBE 450 HW4 solution2CBE 450 HW4 solution3
Alabama - CHEM - 450
CBE450 HW3 solution1CBE450 HW3 solution5: EA2 = EA1+R*slope2Flow System.key phrase "over a catalyst"3CBE450 HW3 solution
Alabama - CHEM - 450
CBE 450 HW2 solution1CBE 450 HW2 solution2CBE 450 HW2 solution3CBE 450 HW2 solution4CBE 450 HW2 solution5
Alabama - CHEM - 450
CBE450 HW1 solution - p.1CBE450 HW1 solution - p.2CBE450 HW1 solution - p.3CBE450 HW1 solution - p.4
Alabama - CHEM - 450
limiting reactant: min(); yA0=forward: -rA=kACA=yA0= ; CA0=reverse: r-A=k-ACBCC2total: rA=-kACA + k-ACBCC2; V=V0(1+X)=kA(CA-CBCC2); KC=at Xeq => rA=0; solve for X (if Kc is given)FA0=CA00r= ; ; ;Variable Volume (over a catalyst (flow system), is
Alabama - CHEM - 450
d=delta-add coeffeicients and divide by absolute of limit reactantep=epsilon/expansion factor!= absolute value barA=B+2Cy_A0=N_A0/N_T0forward: -r_A=k_AC_AC_A0=P_0/RT_0(N_A0/N_T0)reverse: r_-A=k_-AC_BC_C^2total: r_A=-k_AC_A + k_-AC_BC_C^2=k_A(C_A-
Alabama - CHEM - 450
d=delta-add coeffeicients and divide by absolute of limit reactantep=epsilon/expansion factor!= absolute value barA=B+2C y_A0=N_A0/N_T0 forward: -r_A=k_AC_A C_A0=P_0/RT_0(N_A0/N_T0) reverse: r_-A=k_-AC_BC_C^2total: r_A=-k_AC_A + k_-AC_BC_C^2 =k_
Alabama - CHEM - 450
-Production Rate (aA = cC)-Pr_c=(N_c-N_c0)/(t+t_d)=(v_c/abs(v_a)*X*Nao/(t+t_d)-PBR-v/v_o=(F_t/F_to)(T/To)(Po/P)F_t=F_to(1+etaX)dy/dW=(-alpha)/2y)(T/To)(F_t/F_to)y=P/Po=sqrt(1-alpha*W)-Recycle PFR-V=(1+R)*integral(dx/-r_a,xf,xf*R/(1+R)tau= -(1+R)*int
Simon Fraser - MRKT, SOC, - 1**
Introduction to e-MarketingChapter 1Key Conceptse-Business vs. e-Commercee-Marketing / Online Marketing /Digital MarketingIntranet vs. Extranet vs.Intranete-Business and e-CommerceThe distinction between buy-side and sell-side e-commerce.Source:
Simon Fraser - MRKT, SOC, - 1**
e-Marketing StrategyChapter 2What is an E-marketing strategy? What is strategy? Defines how we will meet our objectives Sets allocation of resources to meet goals Selects preferred strategic options tocompete within a market Provides a long-term p
Simon Fraser - MRKT, SOC, - 1**
Online Research:Researching Trends andCompetitionChapter 3Online ResearchChapter 3
Simon Fraser - MRKT, SOC, - 1**
Online Marketing MixChapter 4The marketing mix In 1963 Bartels said:a marketer is like a chef in a kitchen a mixer ofingredients From the 4Ps of Jerome McCarthy to the 7Ps 4Ps Product, Price, Place, Promotion 7Ps add People, Processes and Physical
Simon Fraser - MRKT, SOC, - 1**
Search Engine Optimizationin Nine StepsA Case Study: www.slungdoor.comNote: For additional explanations or comments,please review notesDefining SEOSearch engine optimisation (SEO)is the practice of optimising awebsite soas to achieve preferred ra
Simon Fraser - MRKT, SOC, - 1**
Ivan SurjanovicSocial Media Marketing / Mobile MarketingNote: The purpose of this slide show presentation is tohighlight the most important concepts and resources. Toextend your learning, please visit links and other importantresources specified in y
Simon Fraser - MRKT, SOC, - 1**
Ivan SurjanovicWebsite DevelopmentNote: The purpose of this slide show presentation is tohighlight the most important concepts and resources. Toextend your learning, please visit links and other importantresources specified in your course Learning Ma
Simon Fraser - MRKT, SOC, - 1**
Ivan SurjanovicWeb AnalyticsNote: The purpose of this slide show presentation is tohighlight the most important concepts and resources. Toextend your learning, please visit links and other importantresources specified in your Learning Map (e.g. Lynda
Simon Fraser - MRKT, SOC, - 1**
Ivan SurjanovicWeb AnalyticsNote: The purpose of this slide show presentation is tohighlight the most important concepts and resources. Toextend your learning, please visit links and other importantresources specified in your Learning MapIvan Surjan
Simon Fraser - MRKT, SOC, - 1**
Viral MarketingThe secret to marketing success is no secret at al: Word ofmouth is all that matters (Seth Godin)Creating WOW! Through InspirationViral MarketingWORD OF MOUSE: Electronic equivalent of WORD OF MOUTHCreating WOW! Through InspirationVi