che enthalpy change AH d

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A chemist measures the enthalpy change AH during the following reaction:
2 HNO3(1) + Mg(s)→Mg(NO3),(s) + H2(g)
ДН--443. kJ
'2
Use this information to complete the table below. Round each of your answers to the nearest kJ/mol.
reaction
ΔΗ
x10
Mg(NO,), (s) + H, (8) → 2HNO,(1) + Mg(s)
hno,() + Ma() -- Me(No,),C) + H, G)
1
- Mg(s)
2
Mg(NO,) (s) + ,H, (g)
kJ
3.
3 Mg(NO,), (s) + 3H, (g)
- 6HNO, (1) + 3Mg(s)
||kJ
Transcribed Image Text:A chemist measures the enthalpy change AH during the following reaction: 2 HNO3(1) + Mg(s)→Mg(NO3),(s) + H2(g) ДН--443. kJ '2 Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. reaction ΔΗ x10 Mg(NO,), (s) + H, (8) → 2HNO,(1) + Mg(s) hno,() + Ma() -- Me(No,),C) + H, G) 1 - Mg(s) 2 Mg(NO,) (s) + ,H, (g) kJ 3. 3 Mg(NO,), (s) + 3H, (g) - 6HNO, (1) + 3Mg(s) ||kJ
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