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Chem 2 MIDTERM 2 Form A Spring 08

Chem 2 MIDTERM 2 Form A Spring 08 - Midterm 2 Exam Form A...

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Midterm 2 Exam Form A, CHEM 002 Spring 2008. (Chapters 7, 8, 9 and 10) Name: _________________________  Date: ____________ Please note that you may need to balance the chemical equations given in the question(s)  below before attempting to answer the question(s).       1) What is the pH of a 0.125 M HAc solution? K a  for HAc is 1.8 x 10 -5 . a)   2.83 b)   7.00 c)   11.2 d)   9.65 e)   11.18 2) Which of the following titrations will have a pH > 7 at the equivalence point? a)   HCl with NaOH b)   NH with HCl c)   HAc with NaOH 3) Which carbonate containing species will be predominant in an aqueous solution that  has a pH of 10.00? H 2 CO 3  is a diprotic acid with the following acid dissociation  constants: K a1  = 4.3 x 10 -7 , K a2  = 5.6 x 10 -11 .
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