What will happen to the pH of an acetic acid solution when chloride ion is added? a) pH decreases b) pH increases c) pH remains unchanged?
回答 (1)
2016-03-02 4:08 am
The pH of the solution depends on the following reversible reaction :
CH₃COOH(aq) + H₂O(aq) ⇌ CH₃COO⁻(aq) + H₃O⁺(aq)
The addition of chloride ion does not affect the above reaction, if the volume of the solution remains unchanged. Therefore, the pH of the acetic acid solution remains unchanged.
...... The answer is c).
CH₃COOH(aq) + H₂O(aq) ⇌ CH₃COO⁻(aq) + H₃O⁺(aq)
The addition of chloride ion does not affect the above reaction, if the volume of the solution remains unchanged. Therefore, the pH of the acetic acid solution remains unchanged.
...... The answer is c).
收錄日期: 2021-04-18 14:33:06
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