Problem: How many kilojoules are released when 73.3 g of methanol reacts?2CH3OH(l) + 3O2(g) → 2CO2(g) + 4H2O(l) ΔH= −726kJ

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Molar mass CH3OH:

               1 C x   12.01 g/mol = 12.01 g/mol

               4 H x   1.01 g/mol = 4.04 g/mol

              1 O x 16 g/mol = 16 g/mol
          ___________________________

              Molar mass CH3OH = 32.05 g/mol

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How many kilojoules are released when 73.3 g of methanol reacts?
2CH3OH(l) + 3O2(g) → 2CO2(g) + 4H2O(l) ΔH= −726kJ

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