1. Calculate the pH of a solution in which the [H*] is: a. 1.5 M Also classify each solution as either acidic, basic or neutral. b. 2.6 x 104 c. 9.3 x 107

Chemistry: An Atoms First Approach
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Author:Steven S. Zumdahl, Susan A. Zumdahl
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Chapter13: Acids And Bases
Section: Chapter Questions
Problem 191MP
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1. Calculate the pH of a solution in which the [H*] is:
b. 2.6 x 104
Also classify each solution as either acidic, basic or neutral.
а. 1.5 М
c. 9.3 x 10-7
2. Calculate the [H*] in a solution which has a pH of:
С. 7.97
а. 4.62
b. 9.41
3. Calculate the [OH"] in a solution which has a pH of:
b. 1.00
а. 3.19
C. 9.87
4. In a certain solution the equilibrium concentration of acetic acid is 0.3 M and acetate
is 0.5 M. What is the pH of the solution? Ka of acetic acid
1.8 x 10-5
%3D
6. How many moles of sodium acetate should be added to 375 ml of 0.3M acetic acid in
order to prepare a buffer with pH
= 4.50? Assume no volume change.
7. A buffer is prepared by adding 45 ml of 0.15 M NaF to 35 ml of 0.1 M HF. What is the
pH of the final solution? Ka of HF = 6.8 x 104.
8. Find the pH of a solution that is 0.50 M in formic acid and 0.40 M in sodium formate.
Find the pH after 0.050 mol of HCI has been added to 1.0 liter of the solution.
Transcribed Image Text:1. Calculate the pH of a solution in which the [H*] is: b. 2.6 x 104 Also classify each solution as either acidic, basic or neutral. а. 1.5 М c. 9.3 x 10-7 2. Calculate the [H*] in a solution which has a pH of: С. 7.97 а. 4.62 b. 9.41 3. Calculate the [OH"] in a solution which has a pH of: b. 1.00 а. 3.19 C. 9.87 4. In a certain solution the equilibrium concentration of acetic acid is 0.3 M and acetate is 0.5 M. What is the pH of the solution? Ka of acetic acid 1.8 x 10-5 %3D 6. How many moles of sodium acetate should be added to 375 ml of 0.3M acetic acid in order to prepare a buffer with pH = 4.50? Assume no volume change. 7. A buffer is prepared by adding 45 ml of 0.15 M NaF to 35 ml of 0.1 M HF. What is the pH of the final solution? Ka of HF = 6.8 x 104. 8. Find the pH of a solution that is 0.50 M in formic acid and 0.40 M in sodium formate. Find the pH after 0.050 mol of HCI has been added to 1.0 liter of the solution.
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