105A_samplequiz2_key

105A_samplequiz2_key - Name:_ Last 3 digits Soc Sec # _...

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Name:_________________________________________________ First letter of Last 3 digits Soc Sec # ____________________________________ last name TA's Name______________________________________________ Lab Day and Time ______________________ 1. 2. You must show your work to receive credit for questions 10 and 11. 3. You must use blue 4. There are a total of 7 pages. 5. Use this answer sheet for pages 3-5 (questions 1 through 9). Please sign below : I certify that I have observed all the rules of academic integrity while taking this examination. Signature: ____________________________________________________________________________ __ Question Answer 1 2 3 4 5 6 7 8(a) 8(b) 8(c) 9 - 1 - ANSWER KEY
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Chemistry 105a Lab Quiz #1 October 16, 2003 - 2 -
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Name:_________________________________________________ First letter of Last 3 digits Soc Sec # ____________________________________ last name TA's Name______________________________________________ Lab Day and Time ______________________ Question Points Score Grader 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 4 10 7 11 7 Total 50 Chemistry 105a Lab Quiz #1 October 16, 2003 - 3 -
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Experiment #1 - Making Soap 1. Both soap and detergent molecules are characterized by long hydrocarbon chains with terminal ionic groups. The terminal ionic group in a detergent is a sulfate. The terminal ionic group in a soap is: ___________ carboxylate ___________ 2. Soaps form a precipitate or a “scum” when they react with … write letter(s) of answer(s) on answer sheet a) chloride ions b) calcium ions c) potassium ions d) carbonate ions e) sulfide ions f) nitrate ions Experiment #2 - Propagation of Error 3. Given the formulas for average mass n m m n i i = = 1 and the standard deviation of the of average mass ( 29 ( 29 1 2 - - = n m m s i Which of the following statements is true? write letter(s) of answer(s) on answer sheet.
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105A_samplequiz2_key - Name:_ Last 3 digits Soc Sec # _...

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