Question

5. A student prepares a solution with 5 g of sodium chloride in 145 g of water.
Calculate the mass by mass percentage of the solution.​

Answer 1

Answer:

Mass of solute i.e, for the sodium chloride =58.5g

Mass of solvent i.e, for the water=100g

Mass of solution=58.5+100=158.5g

The concentration of solution in terms of mass percentage is given as,

=

Massofsolution×100

Massofsolute

=

158.5×100

58.5

36.9%