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Hydrogen sulfide, H2S is a foul smelling gas. It burns to form sulfur dioxide.

2H2S +3O2 ----> 2N2 +6H2O Delta H=-1036kJ

Calculate the enthalpy change to burn 26.7 g of hydrogen sulfide.

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Delta H for the reaction is 1036 kJ for 2*molar mass H2S. So what is delta H for 26.7 g instead of 2*32.066 g H2S?

17.4

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