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SCH 4 U Assignment 1 0 Name Hess's Law ( show all your work ) ( 1 ) Find H for 2 C O 2

SCH4U Assignment 10
Name
Hess's Law (show all your work)
(1) Find H for 2CO2(g)+H2O(g)C2H2(g)+52O2(g) given the reactions:
C2H2(g)+2H2(g)C2H6(g),H=-94.5kJ
H2O(g)H2(g)+12O2(g),H=71.2kJ
C2H6(g)+77O2(g)2CO2(g)+3H2O(g),H=-283kJ
(2) Find H for H2SO4(l)SO3(g)+H2O(g) given the reactions:
H2S(g)+2O2(g)H2SO4(l)
H2S(g)+2O2(g)SO3(g)+H2O(l)
H2O(l)H2O(g)
H=-235.5kJ
H=-207kJ
H=44kJ
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