Problem: When a 2.050 gram sample of methanol (CH3OH) was burned in air, it released 40.81 kilojoules (kJ) of heat. Calculate the enthalpy change for the combustion of exactly 1 mole of methanol. 

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When a 2.050 gram sample of methanol (CH3OH) was burned in air, it released 40.81 kilojoules (kJ) of heat. Calculate the enthalpy change for the combustion of exactly 1 mole of methanol. 

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