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Question

A solution is 0.1M in CH3COOH and 0.1M in CH3COONa. Which of the following will change its pH significantly?

A
Addition of small amount of water
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B
Addition of small amount of HCI
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C
Addition of small amount of NaOH
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D
None will change the pH significantly
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Solution

The correct option is C None will change the pH significantly
A solution is 0.1M in CH3COOH and 0.1M in CH3COONa:
None will change the pH significantly because of addition of water or HCl or NaOH, there is no effect.

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