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Calculate the pH of the 0.20 M NH3/0.20 M NH4Cl buffer. What is the pH of the buffer after the addition of 10.0 mL of 0.10 M HCl to 65.0 mL of the buffer?

3 answers

Use the Henderson-Hasselbalch equation.

How do I take into account the change in volume?

You calculate moles, then M = moles/L

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