Question

What is the number of moles of a substance per liter of solution?

• A. Molarity
• B. Molality
• C. Mole fraction
• D. Density
• E. Partial pressure

Answer 1

The correct option is A Molarity

Molarity indicates the number of moles of solute per liter of solution (moles/Liter) and is one of the most common units used to measure the concentration of a solution.

Molarity $=\frac{\text{Number of moles of solute}}{\text{Volume of solution in L}}$