Chem 2 M2 FB KEY

Chem 2 M2 FB KEY - Midterm 2 Exam Form B, CHEM 002 Fall,...

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Midterm 2 Exam Form B, CHEM 002 Fall, 2007. (Chapters 7, 8, 9 and 10) Name: _________________________ Date: ____________ Please note that the chemical equations given below may not be balanced; please be sure to balance all unbalanced chemical equations before answering the question. 1) 25.0 mL of 0.200 M HCl is added to 50.0 mL of 0.100 M NaOH; what is the pH of the resulting solution? NaOH (aq) + HCl (aq) NaCl (aq) + H 2 O (l) a) 13.0 b) 7.0 c) 2.0 d) 1.0 e) 4.0 2) Which of the following compounds when dissolved in pure water will form a basic solution? a) HAc b) NH 4 Cl c) NaNO 3 d) HCl e) NH 3 3) What is the pH of a buffer solution containing 250.0 mL of 0.100 M acetic acid and 300.0 mL of 0.150 M sodium acetate? Acetic acid has a K a = 1.8 x 10 -5 . a) 4.92 b) 4.56 c) 5.00 d) 4.84 e) 4.74 4) What is the pH of a solution containing 0.10 M HIO, 0.10 M HCl and 0.15 M H 2 SO 4 ? (For HIO: K a = 2.3 x 10 -11 and for H 2 SO 4 : K a1 = Very Large and K a2 = 1.2 x 10 -2 ) a) 0.59 b) 0.85 c) 0.64 d) 0.99 e) 1.98 Page 1 of 3
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Midterm 2 Exam Form B, CHEM 002 Fall, 2007. (Chapters 7, 8, 9 and 10)
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Chem 2 M2 FB KEY - Midterm 2 Exam Form B, CHEM 002 Fall,...

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