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Calculate the amount of NaOH in gram pre...

Calculate the amount of NaOH in gram present in 1L NaOH solution of pH=12.

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For the given solution of NaOH, pH=12. hence, pOH=14-pH=14-12=2
In the solution of NaOH, `[OH^(-)]=10^(-pOH)=10^(-2)(M)` Therefore, the amount of NaOH in 1L of its solution=`10^(-2)xx40g=0.4g` .
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