1 the standard enthalpies of formation for co2 g and waterl, Ask an Expert

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1. The standard enthalpies of formation for CO2 (g) and water(l) are -393.5 KJ/mol and -285.8 KJ/mol respectively. The enthalpy of combustion of CH4 (enthalpy of formation = -74.6 KJ/mol) is(KJ/mol)

2. What is the empirical formula for a hydrocarbon with %H =7.7

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