A chemist measures the enthalpy change AH during the following reaction: 2 HNO,(1) + Mg(s)→Mg(NO,),(s) + H,(9) AH =-443. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. reaction ΔΗ 10HNO,() + 5Mg(s) - SMg(NO,),(0) + SH,(2) 4Mg(NO.),() + 4H,(e) 8HNO,() + 4Mg(s) Mg(NO,),() + H,(s) - 2HNO,() + Mg(s) 443. kJ

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A chemist measures the enthalpy change AH during the following reaction:
2 HNO3(1) + Mg(s)→Mg(NO3),(s) + H,(9)
AH=-443. kJ
Use this information to complete the table below. Round each of your answers to the nearest kJ/mol.
reaction
AH
x10
10HNO,() + SMg(s) - 5Mg(NO,),(-) + 5H,(3)
kJ
4 Mg(NO,),() + 4H, (8) →
8HNO,(1) + 4Mg(s)
kJ
Mg(NO,),(s) + H,(s)
2HNO,(1) + Mg(s)
-
443. kJ
Transcribed Image Text:A chemist measures the enthalpy change AH during the following reaction: 2 HNO3(1) + Mg(s)→Mg(NO3),(s) + H,(9) AH=-443. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. reaction AH x10 10HNO,() + SMg(s) - 5Mg(NO,),(-) + 5H,(3) kJ 4 Mg(NO,),() + 4H, (8) → 8HNO,(1) + 4Mg(s) kJ Mg(NO,),(s) + H,(s) 2HNO,(1) + Mg(s) - 443. kJ
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