Problem: Calculate the pH of a solution that is 0.242 M C6H5COOH and 0.183 M C6H5COONa. Ka of C6H5COOH is 6.5 x 10-5.a. 2.77b. 5.81c. 4.31d. 4.07e. 6.19

FREE Expert Solution

We’re being asked to calculate the pH of a solution that is 0.242 M C6H5COOH and 0.183 M C6H5COONa.

In this case, we will be using the Henderson-Hasselbalch equation which can be used for buffer solutions

Recall the Henderson-Hasselbalch equation:

pH=pKa+logconjugate baseweak acid


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Problem Details

Calculate the pH of a solution that is 0.242 M C6H5COOH and 0.183 M C6H5COONa. Ka of C6H5COOH is 6.5 x 10-5.

a. 2.77

b. 5.81

c. 4.31

d. 4.07

e. 6.19