MCQ
In a solution of $pH = 5,$ more acid is added in order to reduce the $pH = 2.$ The increase in hydrogen ion concentration is......$times$
- A$100$
- ✓$1000 $
- C$ 3$
- D$5$
✓
Answer
Correct option: B.
$1000 $
(b) ${[{H^ + }]_{\rm{I}}} = {10^{ - 5}}$ ${[{H^ + }]_{{\rm{II}}}} = {10^{ - 2}}$
Thus increase in $[{H^ + }] = \frac{{{{10}^{ - 2}}}}{{{{10}^{ - 5}}}} = 1000$ times
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