Q3c_key - _A 4 Identify which compound is...

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3c CHEM 3053 – Fall 2011 Name: First__________________ Last__________________ CWID__________________ Quiz #3 – 15 points Date: Wednesday, September 20, 2011 Mark the letter answer legibly (A, B, C, or D) for each question in the blank to the left. pK a = 50 _ 1) Identify which is the pK a for CH 3 CH 3 (a very weak acid) A) pK a = 12 A) pK a = -7 A) pK a = 35 A) pK a = 50 ___D____ 2) Identify which compound is a Lewis Base. A) CH 4 B) NH 4 + C) BCl 3 D) - OH ___C____ 3) Identify which compound is cyclopentane.
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Unformatted text preview: ___A____ 4) Identify which compound is 4-methyl-3-isopropylhexane. ___C____ 5) Identify which compound is an electrophile. A) CH 4 B) NH 3 C) BCl 3 D) -OH ________ 6) Extra Credit: (2 points) Given the pK a s for the following acids which direction does the reaction proceed. ANSWER: Reaction proceeds from Left to Right A) B) C) D) A) B) C) D) F-HF pK a = 3.2 CH 3 OH 2 + pK a = -2.5 CH 3 OH 2 + HF + CH 3 OH +...
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