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Raoult's Law

8 g NaOH is d...

Question

8 g NaOH is dissolved in water to make one litre solution, its molarity is

A

0.8 M

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B

0.1 M

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C

0.2 M

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D

0.4M

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Solution

The correct option is C
0.2 M

Molarity is the number of moles of solute per litre of solution.

Moles of NaOH=8/40=0.2 moles

Molarity =0.2/1=0.2 M

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