If 1.202 g mL^{-1}mL−1 is the density of 20% aqueous KI, determine the following:

(a) Molality of KI

(b) Molarity of KI

(c) Mole fraction of KI

(a) Molar mass of

aqueous solution of KI shows that of is present in of solution.

i.e.,

of is present in of water of water

Hence, molality of the solution

(b) The destiny of the solution is given that

Volume of solution

Hence, molarity of the solution

(c) Moles of

Moles of water

Hence, mole

Fraction of