To make a solution 40 gram of conmon salt is dissolved in 280 gram of water . Calculate it's concentration in terms of mass by mass percentage of the solution

To make a solution 40 gram of conmon salt is dissolved in 280 gram of

1.	To make a solution 40 gram of conmon salt is dissolved in 280 gram of water . Calculate it's concentration in terms of mass by mass percentage of the solution
Answer» MASS of SOLUTION = mass of SALT + mass of WATER = 40g + 280g = 320g mass % of salt = (mass of salt/mass of solution) × 100 = (40/320) × 100 = 12.5% mass % of water = (280/320)×100 = 87.5% THANKS