Question

On a piece of paper, calculate the number of moles of kool-aid® powder needed to make 100 ml of a 0.1 m solution.

Answer 1

This problem is being solved using following formula,

Molarity = Moles / Volume of Solution ----- (1)

Data Given:
Molarity = 0.1 mol.L⁻¹

Volume = 100 mL = 0.1 L

Mole = ?

Solving Eq. 1 for Moles,

Moles = Molarity × Volume of Solution

Putting Values,

Moles = 0.1 mol.L⁻¹ × 0.1 L

Moles = 0.01 moles