Convert 751 g Pb to mols. mols = grams/atomic mass Pb.
Convert mols Pb to mols PbS2 using the coefficients in the balanced equation.
Now convert mols PbS2 to grams. g = mols x molar mass.
Fool's gold is not gold at all but only lead IV sulfide. If you have 751.0 grams of lead how many grams of fool's gold can you make?
Ans: Pb+2S->PbS2
Given * (1/amu of given) * (mol of find/mol of given) * (amu of find/1mol)
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