Homework Answers
From the balanced chemical equation it is clear that 2 moles of H2S releases 1036KJ of energy.
--> Mass of H2S = 36.5g
--> Molar mass of H2S = 34 g/mole
--> Moles of H2S = Mass/Molar mass
= 36.5/34 = 1.074 moles
If for 2 moles ----------> 1036KJ (if it releases)
for 1.074 moles -----> ?
= (1.074*1036)/2
= 556.332KJ
so, for 36.5g of H2S -556.332KJ of enthalpy change occurs.
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