Student Study Guide for Chemistry (11th Edition): Chapter 2, Problem 81P

Question: What is wrong with the chemical formula for each of the following compounds: (a) magnesium iodate [Mg(I04)2], (b) phosphoric acid(H3P03),(c) barium sulfite (BaS), (d) ammonium bicarbonate (NH3HC03)?

Solution: (a) The formula should be Mg(IO3)2. IO3 is the iodate anion. IO4 is the periodate anion.

(b) Phosphoric acid is H3PO4, not H3PO3.

(c) Barium sulfite is BaSO3. SO3 is the sulfite anion.

(d) Ammonium bicarbonate is NH4HCO3. Ammonium is NH4, not NH3.