Question

A solution is prepaxd by adding 2g of a substance A to 18g of water calulour tha mass pexent of tha solute

Answer 1

Answer:

The mass percentage of solute is 10%

Answer 2

Explanation:

Mass percent of solute =

mass of solution

mass of solute

×100

Mass of solute = 2 g

Mass of solvent = 18 g

Mass of solution = 20 g

∴ Mass percent of solute =

20

2

×100

=10%