A solution is prepared by adding 2 g of asubstance A to 18 g of water.

1.	A solution is prepared by adding 2 g of asubstance A to 18 g of water. Calculatethe mass per cent of the solute.
Answer» Answer: MASS PERCENT of solute = mass of solutionmass of solute×100 Mass of solute = 2 g Mass of solvent = 18 g Mass of solution = 20 g ∴ Mass percent of solute =202×100 =10% HENCE, option B is correct.

A solution is prepared by adding 2 g of asubstance A to 18 g of water. Calculatethe mass per cent of the solute.

Answer»

Answer:

MASS PERCENT of solute = mass of solutionmass of solute×100

Mass of solute = 2 g

Mass of solvent = 18 g

Mass of solution = 20 g

∴ Mass percent of solute =202×100

=10%

HENCE, option B is correct.