Question

How many moles of solute are in 3.0 liters of a 5.0 molar solution?
A) 5.0 moles
B) 1.7 moles
C) 3.0 moles
D) 15 moles

Answer 1

if the solution is 5.0 molar, (M), then each liter of solution contains 5 moles of solute. If you have 3 Liters of this kind of solution, then:\[\frac{5 mol}{\cancel{1L}}* 3\cancel {L}\]