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The mole fraction of NaOH in its aqueous...

The mole fraction of NaOH in its aqueous solution is 0.2 and density of this solution is 1.12 gm/ml then molarity of the solution is -

A

10 M

B

1 M

C

0.2 M

D

2M

Text Solution

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The correct Answer is:
A

Total mass `= 14.4 + 8 = 22.4 gm`
`M = (0.2)/((22.4)/(1.12)) xx 1000 = 10 M`
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