Which term describes the number of moles of solute dissolved per liter of solution?

• A. Normality
• B. Molality
• C. Molarity
• D. Mass percent

Answer: (C)

Verified step by step guidance

1. Understand that the question asks for the term that defines the concentration of a solute in terms of moles per liter of solution.
2. Recall the definitions of the given terms: Normality is the number of equivalents of solute per liter of solution; Molality is the number of moles of solute per kilogram of solvent; Mass percent is the mass of solute divided by the total mass of solution multiplied by 100%.
3. Identify that Molarity is defined as the number of moles of solute dissolved in one liter of solution, which matches the description in the question.
4. Express the formula for Molarity as \(\text{Molarity} = \frac{\text{moles of solute}}{\text{liters of solution}}\) to reinforce the concept.
5. Conclude that the correct term describing moles of solute per liter of solution is Molarity.