Question

To make a saturated solution, 36 g of sodium chloride is dissolved in 100 g of water at 293 K. Find its concentration at this temperature.

Answer 1

Mass of solute (sodium chloride) = 36 g
Mass of solvent (water) = 100 g
Mass of solution
= Mass of solute + Mass of solvent
= 36 g + 100 g = 136 g

Concentration = (Mass of Solute / Mass of Solution) * 100

Concentration = (36/136) × 100

Concentration = 26.47%