Which term describes the number of moles of solute dissolved in 1 liter of solution?

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

Answer: (D)

Verified step by step guidance

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