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1. Calculate the percent ionization and hydrogen ion concentration in a solution containing 0.05 M hypochiorous acid (HOCI), which has an ionization constant at 25^°C of 2.9 x 10^-8.

2. Calculate the pH of solutions containing 100 mg,/L of each of the following weak acids or weak bases: (a) acetric acid; (b) hypochlorous acid; (c) ammonia; (d) hydrocyanic acid.

3. What is the pH of a solution containing 10^-2 M propionic acid? 4.13 What is the pH of a solution containing 10^-2 M sodium propionate?

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