Barium hydroxide solution is added to phosphoric acid solution

CHEMISTRY · Single correct · AP · Chemistry · Chemical Reactions · Chemical Reactions

Problem

Barium hydroxide solution is added to phosphoric acid solution. After all acid–base steps and precipitate formation are complete, which equation best represents the overall net ionic reaction? (a) 3Ba2+(aq)+2PO43−(aq)→Ba3(PO4)2(s)3Ba^{2+}(aq) + 2PO_4^{3-}(aq) \rightarrow Ba_3(PO_4)_2(s) (b) 3Ba2+(aq)+2HPO42−(aq)→Ba3(PO4)2(s)+2H+(aq)3Ba^{2+}(aq) + 2HPO_4^{2-}(aq) \rightarrow Ba_3(PO_4)_2(s) + 2H^{+}(aq) (c) 3Ba(OH)2(aq)+2H3PO4(aq)→Ba3(PO4)2(s)+6H2O(l)3Ba(OH)_2(aq) + 2H_3PO_4(aq) \rightarrow Ba_3(PO_4)_2(s) + 6H_2O(l) (d) 2Ba2+(aq)+3PO43−(aq)→Ba2(PO4)3(s)2Ba^{2+}(aq) + 3PO_4^{3-}(aq) \rightarrow Ba_2(PO_4)_3(s)

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