Multiple Choice
In general chemistry, what are the standard units of molarity?
6. Chemical Quantities & Aqueous Reactions
Molarity
Multiple Choice
In general chemistry, what are the correct units for molarity?
A
(moles of solute per liter of solution)
B
(moles per kilogram of solvent)
C
(liters per mole)
D
(grams per liter)
Verified step by step guidance1
Understand that molarity is a measure of concentration that expresses the amount of solute in moles dissolved in a specific volume of solution.
Recall the definition of molarity (M), which is given by the formula: \(M = \frac{\text{moles of solute}}{\text{liters of solution}}\).
Identify the units involved: moles (mol) for the amount of solute and liters (L) for the volume of the entire solution.
Recognize that molality, a different concentration unit, uses moles per kilogram of solvent, which is not the same as molarity.
Conclude that the correct units for molarity are moles per liter, written as \(\frac{\text{mol}}{\text{L}}\).
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