Calculate ΔH° in kilojoules for the following reaction, the preparation of the unstable nitrous acid, HNO2.   Use the following thermochemical equations:

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Calculate ΔH° in kilojoules for the following reaction, the preparation of the unstable nitrous acid, HNO2.

 


Use the following thermochemical equations:

 
1) 2NACI() + H0(1) 2HCI(g) + Na,O(s)
AH° = +507.31 kJ
2) NO(g) + NO,(g)+ Na,O()-
+ 2NANO2()
AH° = -427.14 kJ
3) NO(g) + NO,lg) N,0(g) + O,(g)
AH° = -42.68 kJ
!!
4) 2HNO;(1) → N2O(g) + O2(g) + H,O(1)
AH° = +34.35 kl
Transcribed Image Text:1) 2NACI() + H0(1) 2HCI(g) + Na,O(s) AH° = +507.31 kJ 2) NO(g) + NO,(g)+ Na,O()- + 2NANO2() AH° = -427.14 kJ 3) NO(g) + NO,lg) N,0(g) + O,(g) AH° = -42.68 kJ !! 4) 2HNO;(1) → N2O(g) + O2(g) + H,O(1) AH° = +34.35 kl
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