College Chemistry Ii Phs 1035 Practice Exam 3 With Answer Key Page 16
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3998) What is the pOH of an aqueous solution at 25.0 °C in which [H + ] is 0.0050 M?
98)
A) 8.70
B) 11.70
C) -11.70
D) -8.70
E) none of the above
99) What is the pH of an aqueous solution at 25.0 °C in which [OH - ] is 0.0030 M?
99)
A) 5.81
B) -11.48
C) 2.52
D) -2.52
E) 11.48
100) What is the pOH of an aqueous solution at 25.0 °C in which [OH - ] is 0.0010 M?
100)
A) 11.00
B) -3.00
C) 3.00
D) -11.00
E) 6.91
101) What is the concentration (in M) of hydronium ions in a solution at 25.0 °C with pH = 4.146?
101)
A) 4.15
B) 9.85
C) 1.40 × 10 -10
D) 7.15 × 10 -5
E) none of the above
102) What is the concentration (in M) of hydroxide ions in a solution at 25.0 °C with pH = 4.282?
102)
A) 4.28
B) 9.72
C) 1.92 × 10 -10
D) 5.22 × 10 -5
E) none of the above
103) An aqueous solution contains 0.10 M HNO 3 . The solution is ________.
103)
A) acidic
B) basic
C) neutral
D) very dilute
E) highly colored
104) Which solution will be the most basic?
104)
A) 0.10 M Ba(OH) 2
B) 0.10 M KOH
C) 0.10 M H 2 O
D) 0.10 M CH 3 OH
E) All solutions have equal basicity.
105) A 1.0 × 10 -2 M aqueous solution of Ca(OH) 2 at 25.0 °C has a pH of ________.
105)
A) 12.30
B) 1.70
C) 2.0 × 10 -2
D) 5.0 × 10 -13
E) 12.00
16
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