What will be the effect of adding 0.5 mL of 0.1 M NaOH to 100 mL of an acetate buffer in which [CH₃COOH] = [CH₃COO⁻] = 0.5 M? A)The pH will increase slightly. B)The pH will increase significantly. C)The pH will decrease slightly. D)The pH will decrease significantly. E)Since it is a buffer solution, the pH will not be affected.

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Quizplus · Accepted Answer

Adding a small amount of NaOH (a weak base) to the acetate buffer (a weak acid) will result in a slight increase in pH. The buffer will resist large changes in pH, but a small amount of base will still cause a slight shift towards a more basic pH.

What Will Be the Effect of Adding 0