Answer to Question #199842 in General Chemistry for Web

Question #199842

Given the following data, calculate the ∆H for the reaction: CaC₂(s) + 2H₂O(l) → Ca(OH)₂(aq) + C₂H₂(g).


Data:

Ca(s) + 2C(graphite) -> CaC2(s) delta H= -62.8 kJ

Ca(s) + 1/2O2(g) -> CaO(s) delta H= -635.5 kJ

CaO(s) +H2O(l) -> Ca(OH)s (aq) delta H= -653.1 kJ

C2H2(g) + 5/2O2(g) -> 2CO2(g) + H2O(l) delta H= -1300. kJ

C(graphite) + O2(g) -> CO2(g) delta H= -393.5 kJ



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Expert's answer
2021-05-28T01:30:23-0400


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