Sulfuric acid (H2SO4) is prepared commercially from elemental sulfur using the contact process. In a typical sequence of reactions, the sulfur is first burned: S+O2 →SO2, then it is converted to SO3 using a catalyst: 2 SO2 + O2 → 2 SO3. The resulting SO3 is reacted with water to produce the desired product: SO3 + H2O → H2SO4 .

How much sulfuric acid could be prepared from 87 moles of sulfur?

Answer in units of g.