For the reaction SO3 + H2O --> H2SO4 , calculate the Percent Yield if 500. g of Sulfur Trioxide (SO3)reacts with excess water to produce 558 g of Sulfuric Acid (H2SO4).

Scientists are often interested in knowing the molar heat of combustion – the heat released during the combustion of one mole of a substance. use the periodic table to find molar masses. how many moles of ethanol are present in the sample?