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The pH of NaOH solution is 13. What is t...

The `pH` of NaOH solution is `13`. What is the amount in grams of `NaOH` present in one litre of a solution?

A

`40`

B

`4`

C

`0.4`

D

`20`

Text Solution

Verified by Experts

The correct Answer is:
B
`P^(OH) = 14 - P^(H) = 14 - 12 = 2`
`[OH^(-)] = N = 10^(-POH) = 10^(-2)N`
`N = (W)/(EW) xx (1)/(V("lit"))`
`10^(-2) = (w)/(eq.w) xx (1)/(v)`
`w = 10^(-2) xx 40 xx 1 = 0.4`
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