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Calculate the concentration of hydroxyl ...

Calculate the concentration of hydroxyl ion in a solution left after mixing 100 ml of 0.1 M `Mgcl_2` and 100 ml of 0.2 M NaOH [`K_sp` of `Mg(OH_2)`=`1.2xx 10^(-11`)]

A

`2.8xx10^(-3)`

B

`2.8xx10^(-2)`

C

`2.8xx10^(-4)`

D

`2.8xx10^(-5)`

Text Solution

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The correct Answer is:
C
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