Download More Ka and Kb Practice

Name _______________________________ Date _______________ Period _______
More Ka and Kb Practice
Complete the following problems, showing ALL of your work!
1. Calculate the pH of a 1.0 M solution of HOAc where Ka is 1.8 x 10-5.
2. Calculate the pH of a 0.10 M solution of hypochlorous acid, HClO, where K a is
2.9 x 10-8.
3. Calculate [H+] and pH of a 0.10 M solution of HClO2. Ka is 1.1 x 10-2.
4. Calculate the pH of a 1.0 x 10-4 M solution of HCN, when Ka is 6.0 x 10-10.
5. Calculate the pH of a 0.023 M solution of saccharin, HSc, if K a is 2.1 x
10-12 for this artificial sweetener.
6. Calculate [OH–] and pH of a 0.10 M solution of NH3. Ka for NH4+ is 5.56 x 10-10.
C. Fryberger
EHS 1/2007
Honors Chemistry 2
Name _______________________________ Date _______________ Period _______
7. Calculate the pH of a 0.030 M solution of sodium benzoate, NaOBz, where K b
is 1.6 x 10-10.
8. Calculate [HOAc], [OAc–], [OH–] and pH for a 0.10 M NaOAc solution. Ka for
HOAc is 1.8 x 10-5.
9. Write the steps for the gradual dissociation of citric acid, H3C6H5O7.
10. Fill in the following table:
Solution
[H+]
pH
pOH
0.022 M
HClO4
2.3 M KOH
1.7 x 10-4 M
HNO3
0.10 M HBr
C. Fryberger
EHS 1/2007
Honors Chemistry 2
[OH–]