Question

how much water should be added to 25 grams of salt to obtain 25% solution​

Answer 1

Answer:

concentration of solution = 25 %

mass of solute = 25g

mass of solvent = 25 + X

concentration of solution = (mass of solute / mass of solvent ) × 100

25 = ( 25/ 25 +X ) × 100

25 + X = (25/25) × 100

X = 100 - 25

X = 75 g