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. One wishes to burn 100 moles of a fuel mixture with weight percentages of 80% CH4, 15% C2H6, and 5% C3H8. Find the following: a) The molar composition of this fuel b) The three balanced reactions for the complete combustion of these hydrocarbons c) The stoichiometric amount of O2 needed for the complete combustion of the fuel d) The actual amount of air needed if you wanted 20% excess Knowing the molecular weights are 16 g/mol for CH4, 30 g/mol for C2H6, and 44 g/mol for C3H8.