1.

In a solution of pH = 5, more acid is added in order to reduce the pH = 2. The increase in hydrogen ion concentration is

Answer»

100 times
1000 times
3 times
5 times

Solution :`[H^(+)]_(I) = 10^(-5) = [H^(+)]_(II) = 10^(-2)`.
THUS INCREASE in `[H^(+)] = (10^(-2))/(10^(-5)) = 1000` times.


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