Which of the following concentration terms is used for solutions that contain acids or bases?
Molarity
Molality
Normality
Mole fraction
Normality (N) is defined as the number of equivalents of solute per liter of solution. It is used for solutions that contain acids or bases because they can donate or accept more than one proton. The other concentration terms such as molarity, molality, and mole fraction are used for solutions that contain non-electrolytes or weak electrolytes.