Question

describe the term molarity as it relates to an acid or base.

Answer 1

It's essentially another word for concentration, of the acid. e.g.  "the molarity of the acid is 3moldm^-3"

Answer 2

Molarity is expressed as the number of moles of solute per volume of the solution. For example, we are given a solution of 2M NaOH this describes a solution that has 2 moles of NaOH per 1 L volume of the solution. Acids and bases can be measured through the concentrations of H+ and OH- ions in units of molarity. Hope this helps.