Chapter 4, Problem 58E

A mordant is a substance that combines with a dye to produce a stable fixed color in a dyed fabric. Calcium acetate is used as a mordant. It is prepared by the reaction of acetic acid with calcium hydroxide.

$2{\text{CH}}_3{\text{CO}}_2\text{H}+\text{Ca}{\left(\text{OH}\right)}_2\to \text{Ca}{\left({\text{CH}}_3{\text{CO}}_2\right)}_2+2{\text{H}}_2\text{O}$

What mass of $\text{Ca}{\left(\text{OH}\right)}_2$ is required to react with the acetic acid in 25.0 mL of a solution having a density of 1.065 g/mL and containing 58.0% acetic acid by mass?