Chapter 15, Problem 30QAP

Interpretation Introduction

Interpretation:The number of moles of ${\text{Ca}}^{2+}(aq)$ and ${\text{Cl}}^{-}(aq)$ should be calculated in each liter of solution.

Concept Introduction:

Molarity means moles of solute presence in one-liter solution. Thus, 0.110 M calcium chloride means 0.110 moles of calcium chloride in one-liter solution.

Dissociation of calcium chloride is as follows:

  ${\text{CaCl}}_{\text{2}}(aq)\underset{}{\rightleftharpoons }{\text{Ca}}^{2+}(aq)+2{\text{Cl}}^{-}(aq)$

From the above equation, one mole of calcium chloride produces ${\text{Ca}}^{2+}(aq)$ and two moles of ${\text{Cl}}^{-}(aq)$