1.

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

Answer»

0.4 m
0.8m
0.2m
0.1 M Glucose.

Solution :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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