Concentration and Molarity

A collection of flashcards covering key concepts related to solution concentrations and molarity.

Mass percent (m/m%)

The concentration by mass of solute in mass of solution.

Volume percent (v/v%)

The percent volume (mL) of solute to the volume (mL) of solution.

Mass/volume percent (m/v%)

The percent mass (g) of solute to the volume (mL) of solution.

Molarity (M)

Defined as the moles of solute per volume of solution (L).

Molarity calculation example

A 1.0 M solution of NaCl is defined as having 1 mole of NaCl in 1 liter of solution.

Conversion Factor (m/m)

10% (m/m) KCl solution means 10 g of KCl in 100 g of KCl solution.

Conversion Factor (v/v)

12% (v/v) ethanol solution means 12 mL of ethanol in 100 mL of ethanol solution.

Conversion Factor (m/v)

5% (m/v) glucose solution means 5 g of glucose in 100 mL of glucose solution.

Calculating Mass Percent

Finding the mass percent involves dividing the mass of the solute by the total mass of the solution.

Learning Check Example

To find grams of NaOH for 75.0 g of a 14.0% (m/m) NaOH solution.