Question

a solution is prepared by dissolving 12 gram of sodium chloride in 150 gram of solution calculate the mass percentage of solution

Answer 1

Total mass will become 162g

12/162×100=7.4%

Note-this is percentage formula used

Answer 2

Mass of solution = 150 + 12 = 162g
Mass of solute = 12g
Mass percentage of the solution
= mass of solute/mass of solution
= 12/162*100
= 7.40%