Question

Problem 1.6
A solution is prepared by adding 2 g of a
substance A to 18 g of water. Calculate
the mass per cent of the solute.​

Answer 1

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%

Hence, option B is correct.

Answer 2

Plzz mark it brainliest... Thanks

Answer:

10%..........…..…

Explanation:

Mass percent of solute =

(mass of solute/mass of solution) ×100

Mass of solute = 2 g

Mass of solvent = 18 g

Mass of solution = 20 g

∴ Mass percent of solute =

(2/20) ×100

=10%