PbO2 + 2H2 = Pb + 2H2O

If 478g of lead doixide is heated, what is:
a. the number of moles of lead dioxide used?
b. the number of moles of lead produced?
c. the mass of lead produced?

I am stuck.... please help!!

3 answers

a. mols PbO2 = grams/molar mass = ?
b. 1 mol PbO2 produces 1 mol Pb; therefore, mols Pb = mols PbO2.
c. grams Pb = mols Pb x atomic mass Pb.

Remember this. This will work all of your stoichiometry problems. Step #1 is to write the balanced equation but you already had that.

Very good

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