Problem: A buffer solution is prepared that is 0.24 M NH3 and 0.16 M NH4Cl. What is the pH of this buffer? Kb for NH3 is 1.8 x 10-5a. 10.22b. 9.43c. 8.78d. 9.82e. 10.62

FREE Expert Solution

We’re being asked to calculate the pH of a solution that is 0.24 M NH3 and 0.16 M NH4Cl

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

A buffer solution is prepared that is 0.24 M NH3 and 0.16 M NH4Cl. What is the pH of this buffer? 

Kb for NH3 is 1.8 x 10-5

a. 10.22

b. 9.43

c. 8.78

d. 9.82

e. 10.62

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