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The molarity of NaOH solution obtained b...

The molarity of NaOH solution obtained by dissolving 4g of it in 250 mL solution is :

A

0.4 m

B

0.8m

C

0.2m

D

0.1 M Glucose.

Text Solution

Verified by Experts

The correct Answer is:
a
Molality (m)
`=("Mass of mass//Molar mass")/("Mass of solvent in kg")`
`=((4g)//(40g mol^(-1)))/(250//(1000kg))=0.4 m`
It is assumed that density of water is `1g//mL`.
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