Determine moles of solute in 87.1 mL of 1.3 M solution.

Answer 1

Molarity (or M) is equivalent to moles/L

In order to find the moles in 87.1mL of a 1.3M solution, you need to multiply the volume by the molarity. However, the volume must be in L so that the units cancel out:

1.3M x 0.0871L = 0.113 moles solute