Chemistry 1210 Quiz 8A 10/28/02 Dr. B. Jackson

81. Code A

82. It took 20 mL of a 0.50 N NaOH to neutralize 40 mL of HCl. What is the Normality of HCl?

a) 0.50 N b) 0.25 N c) 1.00 N

83. A solution was made up using 5.0 mL of 12 N HCl and bringing the volume up to 1 liter. What is the Normality of the dilute solution?

a) 0.06 N b) 0.60 N c) 6.00 N d) 0.42 N e) 0.24 N

84. How many milliequivalents of H⁺ would be required to neutralize 20 mL of a 0.2 N NaOH solution?

a) 40 b) 4 c) 0.4 d) 0.04

85. A solution with a pOH of 3.2 is

a) acidic b) basic c) neutral

86. What is the pH of a 0.0015 M NaOH?

a) 1.5 x 10^-3 b) 2.82 c) 11.18

87. What is the pOH of a 1 x 10^-3 M NaOH?

a) 3 b) 11 c) 4.77

88. What is the H⁺ concentration of a solution with a pH of 5.3?

a) 5.3 b) 8.7 c) 5.0 x 10^-6 d) 5.0 x 10⁶ e) 1.9 x 10^-9

89. What is the pH of a solution with a pOH of 4.5?

a) 9.5 b) 4.5 c) 6.5 x 10^-1

90. What is the [OH^-] of a solution with a pH of 6.2?

a) 6.31 x 10^-7 b) 1.58 x 10⁶ c) 7.8 d) 1.58 x 10^-8

Ans: 81a; 82b; 83a; 84b; 85b; 86c; 87a; 88c; 89a; 90d

Wednesday, March 21, 2007 01:28:01 PM