Question

Solution of glucose in water is labeled as 10% what would be the morality molality of solution of density of solution is 1.2g/ml

Answer 1

Explanation:

mass of glucose=10%of solution

ie w=100/10

=10g

molarmass of glucose(m)

=180g

molarity=mass×density×10/molar mass

=10×1.2×10/180

= 12÷18

=2/3

molality={10/180}×{1000/90}

=0.61mol/kg