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Gaseous butane will react with gaseous oxygen to produce gaseous carbon dioxide

ID: 1023673 • Letter: G

Question

Gaseous butane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water. Suppose 0.581 g of butane is mixed with 3.3 g of oxygen. Calculate the maximum mass of water that could be produced by the chemical reaction. Round your answer to three significant digits. Gaseous butane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water. Suppose 0.581 g of butane is mixed with 3.3 g of oxygen. Calculate the maximum mass of water that could be produced by the chemical reaction. Round your answer to three significant digits.

Explanation / Answer

2C4H10 + 9O2 ---------> 8CO2 + 10H2O

no of moles of butane = W/G.M.Wt   = 0.581/58 = 0.01 moles

no of moles of O2     = W/G.M.Wt   = 3.3/32          = 0.103 moles

2 moles of C4H10 react with 9 moles of O2

0.01 moles of C4H10 react with = 9*0.01/2 = 0.045 moles of O2

limiting reagent is C4H10

2 moles of C4H10 react with O2 to form 10 moles of H2O

0.01 moles of C4H10 react with O2 to form =10*0.01/2 = 0.05 moles of H2O

mass of H2O = no of moles * gram molar mass of H2O

                      = 0.05*18 = 0.9g of H2O

                                                0.900 of H2O