A buffer is made from 50 mL of 1.0 M benzoic acid, Ka=6.3⋅10−5, and 50 mL of 1.0 M sodium benzoate.
a) Calculate the pH of this buffer
For this do I simply use −log(6.3⋅10−5)?
b)Calculate the new pH when 0.010 M HCl is added to 100 mL of this buffer.
This one I do not understand.
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