Question

If there is 5 liters of a 3 M solution, how many moles does the solution contain?

Answer 1

V (volume) = 5l

c (molar concentration or molarity) = 3 M = 1 mol/l

c = n/V, where n is the number of moles or amount of substance

So: n = c * V = 3 mol/l * 5l = 15 moles