What is the mass in grams of 1.12 moles of SO3?

To find the mass of 1.12 moles of SO3, you first need to determine the molar mass of SO3. Sulfur has a molar mass of approximately 32.06 g/mol, and each oxygen atom has a molar mass of approximately 16.00 g/mol. Adding these together gives a molar mass of SO3 as approximately 80.06 g/mol. Multiplying the molar mass by the number of moles gives the mass of 1.12 moles of SO3 as approximately 89.67 grams.