Question

20 gm of salt is presented in 150 g of solution calculate its mass percentage​

Answer 1

Mass of solute = 20 g

Mass of solvent = 150 g

So, mass of solution = 20 g + 150 g = 170 g.

We know,

w/w% of concentration = (Mass of solute)/(Mass of solvent) × 100%

=> w/w% = 20/170 × 100% = 200/17%

=> w/w% = 11.76% (answer).