Question

Which has more ions?

a) 750.0 mL of 2.0 M barium chloride
b) 750.0 mL of 2.5 M aluminum chloride
c) 750.0 mL of 3.0 M sodium chloride
d) 750.0 mL of 2.5 M calcium chloride

Answer 1

Barium chloride and aluminum chloride have more ions than sodium chloride and calcium chloride.

Step-by-step explanation:

To determine which solution has more ions, we need to consider the dissociation of each compound. Barium chloride (BaCl2) dissociates into 2 Ba2+ ions and 2 Cl- ions, resulting in a total of 4 ions. Aluminum chloride (AlCl3) dissociates into 1 Al3+ ion and 3 Cl- ions, resulting in a total of 4 ions. Sodium chloride (NaCl) dissociates into 1 Na+ ion and 1 Cl- ion, resulting in a total of 2 ions. Calcium chloride (CaCl2) dissociates into 1 Ca2+ ion and 2 Cl- ions, resulting in a total of 3 ions. Therefore, option (a) and option (b) have more ions than option (c) and option (d).