First slide

PH scale, PH of strong acids and strong bases

Question

The pH of a solution is 6. Its [H₃O⁺] is decreased by 1000 times. Its pH will be

Easy

A

9
B

6.96
C

7.04
D

8

Solution

[H⁺] = 10^-6
^{After decrement,} $\large \left[ {{H^ + }} \right] = \frac{{{{10}^{ - 6}}}}{{{{10}^{ 3}}}} = {10^{ - 9}}$
P^H = 9

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