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Molarity M is defined as:

AMoles of solute per kg of solvent
BVolume of solute per litre
CMass of solute per litre
DMoles of solute per litre of SOLUTION
Answer & Solution
Correct answer: D. Moles of solute per litre of SOLUTION
Molarity (M) = moles of solute / litres of solution. *Note: this is per litre of SOLUTION, not solvent (different from molality).*
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