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AGrams of solute per litre of solvent
BGrams of solute per kilogram of solution
CMoles of solute per kilogram of solvent
DMoles of solute per litre of solution
Answer & Solution
Correct answer: D. Moles of solute per litre of solution
1. Molarity is written as M and is a unit of concentration.
2. It is the number of moles of solute in exactly one litre of the solution.
3. The denominator is the volume of the whole solution, not the volume or mass of the solvent alone.
4. The numerator is an amount in moles, not a mass in grams.
_Source: OpenStax Chemistry (CC BY 4.0), Ch 3 "Composition of Substances and Solutions", section 3.3 Molarity_
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