One ion is produced by the dissolution of each molecule of KCl, and two ions are produced from each molecule of CaCl2. The total number of moles of dissolved Cl- ions is
0.134 + 2(0.221) = .134 + .442 = .576
The solution contains 0.576 mol of Cl- ions.
0.134 + 2(0.221) = .134 + .442 = .576
The solution contains 0.576 mol of Cl- ions.