Problem: If a buffer solution is 0.150 M in a weak base (Kb=7.5x10-5m) and 0.530 M in its conjugate acid, what is the pH?

FREE Expert Solution

Step 1: Calculate pOH. 

Use the Henderson-Hasselbalch equation:

pOH=pKb + log[conjugate acidweak base]

pOH=(-log7.5×10-5) + log[0.530 M0.150 M]pOH=4.12 + 0.548

pOH = 4.67


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Problem Details

If a buffer solution is 0.150 M in a weak base (Kb=7.5x10-5m) and 0.530 M in its conjugate acid, what is the pH?

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