1. Calculate the pH of the following solutions: a. A solution prepared by mixing 30.0 mL of 2.0M NaOH with 300.0 mL of 0.55M formic acid. b. A solution prepared by adding 0.030 moles of HNO3 to 25.0 mL of 2.0M potassium carbonate c. 10.0 mL of 1.0 M HCl added to 50.0 mL of a solution that is 0.40M in both HF and NaF. d. 32 drops of 6.0M NaOH added to 40.0 mL of a solution that is 0.65M in acetic acid and 0.25M in calcium acetate. 20 drops = 1 mL

Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter16: Reactions Between Acids And Bases
Section: Chapter Questions
Problem 16.36QE
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1. Calculate the pH of the following solutions:
a. A solution prepared by mixing 30.0 mL of 2.0M NaOH with 300.0 mL of
0.55M formic acid.
b.
A solution prepared by adding 0.030 moles of HNO3 to 25.0 mL of 2.0M
potassium carbonate
c.
10.0 mL of 1.0 M HCl added to 50.0 mL of a solution that is 0.40M in both HF
and NaF.
d. 32 drops of 6.0M NaOH added to 40.0 mL of a solution that is 0.65M in acetic
acid and 0.25M in calcium acetate. 20 drops = 1 mL
2. What amounts of reagents are needed to make the following buffer solutions?
250.0 mL, pH = 3.85, lesser component = 0.25M, using 1.0M formic acid and
3.0 M NaOH
a.
b.
150.0 mL, pH = 7.30, lesser component = 0.15M, using 2.0 M NaClO and 6.0 M
HNO3
Transcribed Image Text:1. Calculate the pH of the following solutions: a. A solution prepared by mixing 30.0 mL of 2.0M NaOH with 300.0 mL of 0.55M formic acid. b. A solution prepared by adding 0.030 moles of HNO3 to 25.0 mL of 2.0M potassium carbonate c. 10.0 mL of 1.0 M HCl added to 50.0 mL of a solution that is 0.40M in both HF and NaF. d. 32 drops of 6.0M NaOH added to 40.0 mL of a solution that is 0.65M in acetic acid and 0.25M in calcium acetate. 20 drops = 1 mL 2. What amounts of reagents are needed to make the following buffer solutions? 250.0 mL, pH = 3.85, lesser component = 0.25M, using 1.0M formic acid and 3.0 M NaOH a. b. 150.0 mL, pH = 7.30, lesser component = 0.15M, using 2.0 M NaClO and 6.0 M HNO3
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