Aqueous lead(II) acetate reacts with aqueous ammonium phosphate (a) Write the ba

Question

Aqueous lead(II) acetate reacts with aqueous ammonium phosphate (a) Write the balanced molecular chemical equation. (b) Write the complete ionic equation. (c) Write the net ionic equation. (d) What are the spectator ion(s)? Strontium carbonate is responsible for the red color in fireworks. It is generated in the reaction given below. Use these reactions to determine delta H for the formation of 1 mole of SrCO_3. Sr(s) + C(graphite) + 3/2O_2(g) rightarrow SrCO_3 (s) Sr(s) +1/2O_2 (g) rightarrow SrO(s) delta H = -592 kJ SrCO_3(s) rightarrow SrO(s) + CO_2 (g) delta H = 234 kJ C(graphite) +O_2(g) rightarrow CO_2(g) delta H = -394 kJ

Explanation / Answer

3(CH3COO)2Pb(aq) + 2(NH4)3PO4(aq) ---------->6CH3COONH4(aq) + Pb3(PO4)2(s)

6(CH3COO)- (aq) + 3Pb2+(aq) + 6(NH4)+ +2PO43-(aq) ---------->6CH3COO- (aq)+ 6NH4+(aq) + Pb3(PO4)2(s)

spectator ions are CH3COO- , NH4+

removal of spector ions to get net ionic equation

3Pb2+(aq) + 2PO43-(aq) ----------> Pb3(PO4)2(s) net ionic equation

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