Chemistry Problem Help

Question

Briefly explain how the pH of a 3.0 M solution of K 2 SO 3 should compare to that of a 3.0 M solution of Rb2 SO 3

Answer 1

K2SO3 (potassium sulfite) is the salt of a strong base (KOH) and a weak acid (H2SO3).

Rb2SO3 (rubidium sulfite) is the salt of a strong base (RbOH) and a weak acid (H2SO3).

Solution of both salts will have an alkaline pH (>7) and they should be the same because they are both formed by strong bases from group 1