Acid-Base Practice Problems

Chapter 13 & 14 Review:
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Concept Check
pH and Acid Strength
A 0.0001 M solution of ammonium hydroxide has a pH of 9.53.
Based on this information, what is ammonium hydroxide?
A. a strong acid
B. a weak acid
C. a strong base
D. a weak base
E. Not enough information provided
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Acid-Base Practice Problems
Antacids, such as milk of magnesia, are often taken to reduce the
discomfort of acid stomach or heartburn. The recommended
dose of milk of magnesia is 1 teaspoon, which contains 400 mg
of Mg(OH)2. What volume of HCl solution with a pH of 1.1 can be
neutralized by 1 dose of milk of magnesia?
Acid-Base Practice Problems
Consider a Mg(OH)2 solution with a pH of 10.
If 10.0 mL of this solution is diluted to a final volume of 1.00 L,
what would be the pH of this final solution?
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Acid-Base Practice Problems
A 0.105 gram sample of a diprotic acid is dissolved in water and
titrated with 0.1288 M NaOH. The equivalence point is reached
after adding 15.2 mL of base (when neutralization reaction is
complete). What is the molar mass of the unknown acid?
Acid-Base Practice Problems
Vinegar is a solution of acetic acid (CH3CO2H) in water. If 100.0
mL of a vinegar solution requires 24.38 mL of 0.198 M NaOH to
be fully neutralized, what is the concentration of the vinegar in
units of molarity? What about in mass %?
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