Question

What is the maximum mass of common salt is dissolved in 20 gram of water at 20 Celsius?

Answer 1

the mass of water will be 0.199×10^2 moles = 20 moles

Answer 2

Answer:

7.2g

Explanation:

Actually, solubility of salt is 36g/100g  in water.

So,

Common Salt            Water

  36g                           100g

    x                               20g

  As its in direct proportion,

        36(20) = 100(x)  

           720 = 100x

           x = 720/100

            x = 36/5

             x = 7.2

So, Mass of Common Salt in 20g Water = 7.2g