21. Aqueous lead precipitates when mixed with aqueous carbonate.
Pb2+ (aq) + CO32− (aq) ---> PbCO3 (s)
If 5.000 g Pb(NO3)2 and 2.500 g Na2CO3 are mixed in water, which ion is the limiting reactant? What mass PbCO3 is precipitated? (PbCO3 = 267.21 g/mol, Pb(NO3)2 = 331.2 g/mol, Na2CO3 = 105.9888 g/mol)