Question

a solution contains 40 grams of common salt in 360 ml of water calculate the concentration in terms of mass by mass of solution

Answer 1

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▶Mass of solute=> 40 g
▶Mass of solvent=> 320 g

▶Mass of Solution=> 40 + 320= 360 g

▶Mass of percentage = mass of solute/ mass of solution × 100

➡40 / 360 = 100%
➡1 / 9 = 100%
➡11.11%...Ans..✔