how much copper sulphate will require saturating 80 grams of water at 20 degree celcious .if solubility of copper sulphate at 20degree celcious is 25?

Answer 1

Solubility is defined as the number of grams of solute that will saturate 100 grams of solvent at a given temperature.

So at 20 degrees, we know that the solubility of CuSO4 is 25.

Mass of water (solvent)=80 g
Use ratios:

25:100 = x:80
Solve for x to get x=25*80/100=20g