Lead(IV) Sulfate is the name of the formula Pb2(SO4)4. This is composed of the elements Lead (Pb), Sulfur (S), and oxygen (O). For this compound, lead has 2 atoms with an atomic weight of 207.2 and a mass percent of 51.89, sulfur has 4 atoms, 32.065 atomic weight, and 16.06% mass percent, and oxygen has 16 atoms, an atomic weight of 15.9994, and mass percent of 32.05. the molar mass of Lead(IV) Sulfate or Pb2(SO4)4 is 798.6504 g/mol. Pb2(SO4)4 can also be called Plumbic Sulphate as its common while Lead(IV) Sulfate is its systematic name. Either is correct as long as it did not specify to write the common or systematic name of Pb2(SO4)4.