Question

Module 11 Homework 1. Find the pH of a buffer solution containing of 1.5M sodium acetate and 0.9M acetic acid. The K, of acetic acid is 1.8 x 105. 2. Find the pH of 100.0 mL of the buffer from exercise 1 after the addition of 0.030 mol of gaseous hydrochloric acid. Assume no volume change. 3. Find the pH of 200.0 mL buffer from exercise 1 after the addition of 150.0 mL of 0.020M NaOH. 4. What conjugate acid-base pair(s) would be appropriate to make a buffer with pH of 77! Multiple answers may be appropriate. What consideration is important in your choice?

Answer 1

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