Question

calculate the mass of sodium sulphate required to prepare it's 20%(mass percent) solution in 100gm of water?​

Answer 1

Answer:

Explanation:

Let the mass of sodium sulphate required be = x g The mass of solution would be = (x +100) g x g of solute in (x + 100) g of solution 20% = ×/x+100 x100 20 x + 2000= 100 x 80 x = 2000 x = 2000/ 80 = 25 g