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Which term is commonly used to express the concentration of an aqueous solution?
A
Molarity
B
Viscosity
C
Boiling point
D
Density
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1
Understand that concentration in chemistry refers to how much solute is dissolved in a given amount of solvent or solution.
Recognize that several terms can describe properties of solutions, but concentration specifically relates to the amount of solute per volume of solution.
Recall that molarity (M) is defined as the number of moles of solute divided by the volume of the solution in liters, expressed as \(M = \frac{\text{moles of solute}}{\text{liters of solution}}\).
Note that viscosity, boiling point, and density describe physical properties of a solution but do not directly express concentration.
Conclude that molarity is the standard and commonly used term to express the concentration of an aqueous solution.