Question

a solution contain 40 g of common salt in 320g of water. calculate the concentration in terms of mass by mass percentage of solution.​

Answer 1

Answer:

Hey there ! The answer is as follows-

Mass of solute = 40g ( common salt )

Mass of solvent = 320g ( water )

Mass of solution = Mass of solute + Mass of solvent = 40+320=360g

Concentration = Mass of solute/ Mass of solution× 100 =

$(40 \div 360) \times 100$

$(1 \div 9) \times 100 = 11.1\%$

Therefore concentration of the solution in terms of mass by mass percentage = 11.1%

Hope this answer helps you !