Question

what is the mass in grams of potassium iodide in 14.86 ml of a 32.44% mass by volume of an aqueous potassium iodide solution

Answer 1

Given:

The concentration of potassium iodide solution = 32.44 % w/v

The volume of potassium iodide solution = 14.86 ml

To Find:

The mass in grams of potassium iodide in the given volume of solution.

Calculation:

- According to the question:

Concentration = 32.44 % w/v

⇒ The mass of KI in 100 ml of solution = 32.44 gm

⇒ The mass of KI in 14.86 ml of solution = (32.44/100) × 14.86

⇒ The mass of KI in 14.86 ml of solution  = 4.82 gm

- So, the mass of potassium iodide in the given volume of solution is 4.82 gm.