Discussion
Molar mass of a compound is the :
Answer: B
Molar mass is the mass in 1 mol of a substance.
It is expressed in grams per mole and is numerically equal to the relative molecular mass: water has molar mass 18 g/mol, so one mole of water, 6.022 × 1023 molecules, weighs 18 g.
Mass per litre of solvent is a concentration (and grams of solute per kilogram of solvent leads to molality), not a property of the compound itself. Mass in 1 ml of solvent is closer to density, and 'mass in 1 g of a compound' is circular, since it is simply 1 g.
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