Hоw mаny mоles оf sulfur trioxide аre formed from 9.783 moles of sulfur dioxide using the below bаlanced equation? 2 SO2 + O2 → 2 SO3 If needed, the element molar masses from the periodic table are given below: Sulfur: 32.07 g/mol Oxygen: 16.00 g/mol If needed: Avogadro's number is 6.022 x 1023