Calculate the `(a)` molality, `(b)` molarity, and `(c)` mole fraction of `KI` if the density of `20% (` mass `//` mass `)` aqueous `KI` is `1.202 g m L^(-1)`.

Explanation

To solve the problem of calculating the molality, molarity, and mole fraction of KI in a 20% (mass/mass) aqueous solution with a density of 1.202 g/mL, we will follow these steps:

### Given Data:
- Density of solution = 1.202 g/mL
- Mass percent of KI = 20%
- Mass of KI = 20 g (in 100 g of solution)
- Mass of water = 80 g (in 100 g of solution)

...