Question

A salt dissolved in water to make the solution . If mass of solvent is 250 g and mass% of solution is 40% . Find the mass of solute

Answer 1

Mass % of solution = 40 %

40 g solute in 100 g solution

40 % = $\frac{x g}{250g + x g} * 100$

40 = $\frac{x}{250+x}*100$

x = 167 g solute

Answer 2

Answer:

Mass of sodium chloride (solution) = 36 g

Mass of water (solvent) = 100 g

Total mass of solution = 100 + 36 = 136 g

Mass percentage of solution= mass of solute/mass of solution X 100

=36/136x100

= 26.47%