LAB 2 1. Identify the functional group or molecule for each of the following. (3 points) a. Carboxyl group/acid‚ aldehyde group b. Hydroxyl group‚ alcohol group c. Hydroxyl group‚ alcohol group 2. List whether each of the following substances was positive or negative for reducing sugar‚ as indicated by the Benedict’s test. (6 points) a. Corn syrup (1 point) Positive b. Table sugar (1 point) Positive c. Unknown 1 (1 point)Negative d. Unknown 2 (1 point)Negative e. Unknown 3 (1 point)Negative
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Lesson 1 1 For a computer to be accessible from the Internet‚ it must have an IP address that is both Registered and Uniqe. 2 A refferal is the process by which one DNS server sends a name resolution requests to another DNS server. 3The Internet Corpotation for Names and Numbers (ICANN)manages IANA‚ the ultimate source for all registered addresses. 4 IANA allocate blocks of addresses to Regional Internet Registries (RIR) which allocate smaller blocks in turn to Internet service provides (IPSs)
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to use a calculator. We strongly recommend that you sit this examination as if you were writing it in an invigilated setting. You will get a much better idea of your degree of preparedness for the actual examination. Part A: Short–answer Questions (1 mark each) 1. Calculate the density of bromine‚ given that 120.0 mL has a weight of 374.3 g. Report your answer to the correct number of significant figures and in units of g/mL. 2. What is the name of the compound FeCl3? 3. What is the chemical
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1) At equilibrium‚ __________. A) all chemical reactions have ceased B) the rate constants of the forward and reverse reactions are equal C) the rates of the forward and reverse reactions are equal D) the value of the equilibrium constant is 1 E) the limiting reagent has been consumed 2) Which of the following expressions is the correct equilibrium-constant expression for the reaction below? HF (s) + H2O (l) ⇌ H3O+ (aq) + F- (aq) A) [HF][H2O] / [H3O+][F-] B) 1 /[HF]
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Name__________________________ Chemistry 190: Organic Chemistry EXAM 3 Thursday April 21‚ 2011 1. (12) ______ 2. (14) ______ 3. (20) ______ 4. (12) ______ 5. (54) ______ 6. (16) ______ 7. (12) ______ 8. (10) ______ Total (150) ______ The exam consists of twelve numbered pages and an unnumbered cover sheet. Make certain that you have a complete exam. You will have two hours to work on the exam. No books or notes are allowed; however‚ you may use a molecular model set and a calculator
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1 a) I used the before reading strategy of understanding what my purpose was of reading the text. It was to understand the text fully and apply the reading strategies. During reading the story‚ The Rocking Horse Winner‚ I used the strategies of words in bold and italics. The son in the story says “I am lucky”. I understood that the boy was trying to tell his mother that he really is lucky even though she believed herself and her family was very unlucky. I also made connections while reading. The
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Part A From the list below‚ supply the words needed to complete the paragraph. Some words will not be used . divulge abet temerity insipid gregarious coerce jaundiced Jasmine had thought that her irresponsible days of __________________________ were far behind her until Kayla showed up at her door. After only three days of freedom from the county correctional facility‚ Kayla had begun her old scheming again. She went to the house to ____________________ Jasmine into helping her
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Key Questions Unit 1 Lesson 1 1. a) (2x3)(-7x5)= -14x8 b) -45x5y7z9/9x7y7z5= -5z4/x2 c) (-5x4)3= (-53)(x12)= -125x12 d) (3x4y5z7)5/(-3x3yz4)7=243y18z7/-2187x= y18z7/-9x e) (xa+b)a-b/(xa-2b)a+2b= (xa^2-b^2)/(xa^2-4b^2)= x3b^2 2. a)6-2= 1/62=1/36 b)253/2=(2√25)3=53=125 c) -85/3=(3√-8)5= (-2)5= -32 d) 625(-3/4)=1/(4√625)3=1/53= 1/125 3. a) 93x272x813= (32)3x(33)2x(34)3= 36x36x312= 324 b) 57x253/1254= (57x(52)3)/(53)4= 57x56/512=513/512= 5 4. 5. To find the equation of the
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unaffected by the amount of each annuity payment. B. The present value of an annuity is unaffected by the number of the annuity payments. C. The present value of an annuity increases when the interest rate decreases. D. The present value of an annuity increases when the interest rate increases. E. The future value of an annuity increases when the interest rate decreases. 4. A debenture is: A. long-term debt secured by fixed assets of the borrower. B. unsecured debt that generally matures in less than
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ANSWERS TO QUESTIONS: 1. What are the significant regions in the titration curve? Relate the characteristics of each region to the pH results obtained. - There are four significant regions in each titration curve‚ namely the initial‚ pre-equivalence‚ equivalence‚ and post-equivalence points. These points are named according to its position relative to the equivalence point. The equivalence point signifies the volume of titrant at which the solution becomes neutral. This is represented in the
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