Question

a sugar solution is 10 w/v find w/w if density of solution is 12.5g/ml​

Answer 1

Explanation:

Answer

10%w/v solution of sugar in water means 10 g of glucose present in 100g of water.

Then Mass of glucose is 10g

Mass of water is = 100g−10g=90g=0.09kg

and density = 1.2gmL

−1

To find the molarity i.e,

v

w

Density =

v

m

=1.2 g/ml

volume=

density

mass

molality=

1.2g/ml

100g

=83.33ml=0.0833L

molarity=

0.0833

0.0566=0.67M