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The pH of NaOH solution is 12. What is t...

The `pH` of `NaOH` solution is `12`. 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:
C
`P^(H)=12, P^(OH)=2`
`[OH^(-)]=10^(-2)`
`N=(w)/(Gmw)xx(1000)/(v) " " 10^(-2)=(w)/(40)xx(1000)/(1000)`
`w=40xx10^(-2)=0.4`
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