AP Chemistry Quiz: Titration - Ch. 15
Name___________________________________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1) Which of the following could be added to a solution of potassium fluoride to prepare a buffer?
A) sodium hydroxide
B) sodium fluoride
C) hydrochloric acid
D) potassium acetate
E) ammonia
2) The pH of a solution prepared by mixing 45 mL of 0.183 M KOH and 65 mL of 0.145 M HCl is __________.
A) 1.97
B) 2.92
C) 1.31
D) 0.74
E) 70.145
3) A 25.0-mL sample of a solution of an unknown compound is titrated with a 0.115 M NaOH solution. The
titration curve above was obtained. The unknown compound is __________.
A) a strong acid
B) a weak acid
C) a strong base
D) a weak base
E) neither an acid nor a base
4) A 25.0-mL sample of a solution of a monoprotic acid is titrated with a 0.115 M NaOH solution. The titration
curve above was obtained. The concentration of the monoprotic acid is about __________ mol/L.
A) 0.24
B) 25
C) 0.12
D) 0.10
E) 0.060
5) A 25.0 mL sample of a solution of a monoprotic acid is titrated with a 0.115 M NaOH solution. The titration
curve above was obtained. The Ka of the monoprotic acid is about __________.
A) 1 ˛ 10-2
B) 1 ˛ 10-4
C) 1 ˛ 10-6
A-1
D) 1 ˛ 10-8
E) 1 ˛ 10-12
Answer Key
Testname: QUIZ_TITRATION_CH_15.TST
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1) C
ID: chem9b 17.1-18
2) A
ID: chem9b 17.1-29
3) B
ID: chem9b 17.1-34
4) C
ID: chem9b 17.1-35
5) B
ID: chem9b 17.2-20
A-1