Homework #2 For all questions, provide your own answers in the space provided.
1. Calculate the pH of the following solutions.
a) [H+] = 3.25 x 10-4 M
b) [OH-] = 8.91 x 10-6 M
c) [CaOH2] = 0.0034 M
d) [HNO3] = 6.98 x 10 -9 M
2. Calculate the pH of a buffer made from 3.00 g of and 3.50 g of sodium
succinate dissolved to a volume of 1.00 L with DI water.
3. Explain in your own words why a buffer must be made from a conjugate acid/base pair.
4. For a Biochemistry experiment, you need a solution that will maintain a pH of 9.25. Which
of the following acids would you choose to make this solution? , p-Nitrophenol,
or ? Expain your choice.
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