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1. Calculate the mass of water produced when 9.11 g of butane reacts with excess oxygen.
Express the mass of water numerically in grams.
2. Calculate the mass of butane needed to produce 46.9 g of carbon dioxide.
Express the mass of butane numerically in grams.
3. How many moles of nitrogen, n, are in 70.0g of nitrous oxide, n2O?
4. What is the mass of 5.20 moles of magnesium chloride, MgCl2?

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