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Propane (C3H8) burns in this reaction: C3H8 + 5O2 = 4H2O + 3CO2 If 200 g of propane is burned, how many g of H2O is produced?

Propane (C3H8) burns in this reaction: C3H8 + 5O2 = 4H2O + 3CO2 If 200 g of propane is burned, how many g of H2O is produced? Correct Answer 327.27 g

Steps to getting this answer: Since you cannot calculate from grams of reactant to grams of products you must convert from grams of C3H8 to moles of C3H8 then from moles of C3H8 to moles of H2O. Then convert from moles of H2O to grams of H2O. Step 1: 200 g C3H8 is equal to 4.54 mol C3H8. Step 2: Since there is a ratio of 4:1 H2O to C3H8, for every 4.54 mol C3H8 there are 18.18 mol H2O. Step 3: Convert 18.18 mol H2O to g H2O. 18.18 mol H2O is equal to 327.27 g H2O.

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