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Answers for HW 6

Answers for HW 6 - CHE-105 Exploring Chemistry Homework...

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CHE-105 Exploring Chemistry Homework Chapter 6 Name ______________________ Consider the following equations: a. B(OH) 3 + H 2 O B(OH) 2 O - + H 3 O + b. NaOH + 6H 2 O Na(H 2 O) 6 + OH - c. NH 3 + H 2 O NH 4 + + OH - d. O 2 NOH + H 2 O O 2 NO + H 3 O + 1. Indicate which form acids and which form bases. - Acids ___ a, d ________ - Bases __ b,c _________ 2. Indicate which of the following are strong acids (SA), weak acids (WA), strong bases (SB) and weak bases (WB). a. KOH K + + OH - SB b. Ba(OH) 2 Ba 2+ + 2 OH - WB c. HCl H + + Cl SA d. H 2 SO 4 H + + HSO 4 - SA e. NH 4 OH NH 4 + + OH - WB f. CH 3 COOH CH 3 COO - + H + WA 3. What is the pH if the [H + ] concentration is a. 1 X 10 -6 M 6 b. 2 X 10 -12 M 11.7 c. 0.01 M 2 4. Which of the following are acids (A) and bases (B) or neutral (N)? a. 4 X 10 -8 M B b. 7 X 10 -7 M A c. 1 X 10 -7 M N 5. What is the [H + ] if the pH is a. 4 1 X 10 -4 M b. 12 1 X 10 -12 M
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c. 2.6 2.5 X 10 -3 M 6. Identify the following as acidic (A) or basic (B).
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Answers for HW 6 - CHE-105 Exploring Chemistry Homework...

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