Is Ammonium carbonate a strong or weak base?
A solution of ammonium carbonate will have a pH above 7 (probably 9-10 depending on concentration). Ammonium carbonate is made up of two ions (ammonium and carbonate). The ammonium ion in solution will act as an acid (losing protons to the water); while the carbonate ion will behave as a base (accepting protons from the water). The carbonate ion is a stronger base than the ammonium ion is an acid and so the solution will have pH>7.