What will be the (A) molality (B) molarity and (C ) mole fraction of KI respectively, if the density of 20 % (mass/mass) aquesous KI is 1.202 g mL-1 ?

Options

A. 1.5, 1.45 and 0.0263
B. 15, 14.5 and 0.0263
C. 1.5, 14.5 and 0.0263
D. 1.5, 1.45 and 0.263

Explanation

To solve the problem step by step, we will calculate the molality, molarity, and mole fraction of KI in a 20% (mass/mass) aqueous solution with a density of 1.202 g/mL.

### Step 1: Calculate the Mass of KI and Water
Given that the solution is 20% (mass/mass) KI, this means:
- In 100 g of solution, there are 20 g of KI and 80 g of water.

### Step 2: Calculate the Molar Mass of KI
The molar mass of KI (Potassium Iodide) can be calculated as follows:
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