What happens to the pH of a carboxylic acid sol... - SS3 Chemistry Organic Chemistry: Aldehydes, Ketones, and Carboxylic Acids Question
What happens to the pH of a carboxylic acid solution when it is diluted with water?
A
The pH decreases.
B
The pH increases.
C
The pH remains unchanged.
D
The pH becomes neutral.
correct option: b
When a carboxylic acid solution is diluted with water, the concentration of the carboxylate ions (RCOO-) increases relative to the concentration of the undissociated acid (RCOOH). As a result, the concentration of hydrogen ions (H+) decreases, leading to an increase in pH. Dilution makes the solution less acidic.
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