Which statement best describes the differences between a 0.1 M solution of ammonium bicarbonate, NH4 — Acid-Base Chemistry Chemistry Question

The pH of the ammonium bicarbonate solution is lower because both ammonium ion and bicarbonate ion can act as Brønsted acids.

The pH of the ammonium bicarbonate solution is higher because it has only half the ammonium ion concentration of the ammonium carbonate solution.

The pH of the ammonium bicarbonate solution is higher because it contains only two-thirds as many total ions as the ammonium carbonate solution.