Question

What is the molarity of a 3.0-liter solution that contains 0.45 moles of solute?

Answer 1

Molarity = moles / Volume in liters

M = 0.45 / 3.0

M = 0.15 mol/L 

Answer 2

Answer: 0.15 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

$Molarity=\frac{moles}{\text {Volume in L}}$

Moles are calculated by dividing the given mass by molecular mass of that substance.

$Molarity=\frac{0.45moles}{\text {3.0 L}}$

$Molarity=0.15M$