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An aqueous solution of HCI is 10^(-9) M ...

An aqueous solution of `HCI is 10^(-9) M HCI`. The `pH` of the solution should be

A

8

B

-8

C

between 7 and 8

D

between 6 and 7

Text Solution

Verified by Experts

The correct Answer is:
D
As the solution is acidic, `pH lt 7`. This is because `[H^(+)]` from `H_(2)O[10^(-7)M]` cannot be neglected in comparison to `10^(-9)M`.
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