How many moles of H2SO4 do you want? That's moles = g/molar mss 200/98 = 2.04
Then 2.04 mols H2SO4 x (2 mols H2O/2 molsH2SO4) = 2.04 x 2/2 = 2.04 moles H2O needed.
Then grams H2O = moles H2O x molar mass H2O = ?
What is the minimum mass of water necessary to produce 200. g of sulfuric acid in the following reaction?
2SO2 + O2 + 2H2O → 2H2SO4
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