`pH` of a `10^(-10) M NaOH` is nearest toA. `10`B. `7`C. `4`D. `10`

1.	`pH` of a `10^(-10) M NaOH` is nearest toA. `10`B. `7`C. `4`D. `10`
Answer» Correct Answer - B Total concentration of `[OH^(-)]` in solution `=[OH^(-)]_(f rom water)+[OH]_(f rom NaOH)` `=10^(-7)_(a ppro x)+10^(-10)` `=` slightly more than `10^(-7)` So `pOH` should be slightly less than `7`

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`pH` of a `10^(-10) M NaOH` is nearest toA. `10`B. `7`C. `4`D. `10`

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