Question

The molarity of sulphuric acid solution is 0.2 mol/kg. Calculate the weight of the solution

Answer 1

0.2 molality means
0.2 moles of solute are present in 1 kg(1000 gm)of solvent.

mass of solution would be=> mass of solute + mass of solvent.

mass of solute = molar mass ×moles of solute = 98 ×0.2 = 19.6 gm.

Mass of solvent is 1000gm.

Therfore,
mass of soltuion is = 1000+ 19.6 = 1019.6 gm.