Calcium chloride when dissolved in water dissociates into its ions according to the following equation.
CaCl2 (aq) → Ca2+ (aq) + 2Cl– (aq) Calculate the number of ions obtained from CaCl2 when 222 g of it is
dissolved in water.
CaCl2(aq) → Ca2+(aq) + 2Cl–(aq)
Mol. Wt. 111
Number of ions = 3
111 gm of CaCl2 = 3 ions
222 gm of CaCl2 = = 6 ions