6.57 Nitroglycerine, C,H,(NO,),(I), a powerful explosive used in mining, detonates to produce a hot gaseous mixture of nitrogen, water, carbon dioxide, and oxygen. (a) Write a balanced equation for this reaction using the smallest whole-number coefficients. (b) If AHº = -2.29×104 kJ for the equation as written in part (a), calculate AH of nitroglycerine. rxn
6.57 Nitroglycerine, C,H,(NO,),(I), a powerful explosive used in mining, detonates to produce a hot gaseous mixture of nitrogen, water, carbon dioxide, and oxygen. (a) Write a balanced equation for this reaction using the smallest whole-number coefficients. (b) If AHº = -2.29×104 kJ for the equation as written in part (a), calculate AH of nitroglycerine. rxn
General Chemistry - Standalone book (MindTap Course List)
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Chapter6: Thermochemisty
Section: Chapter Questions
Problem 6.110QP: A 29.1-mL sample of 1.05 M KOH is mixed with 20.9 mL of 1.07 M HBr in a coffee-cup calorimeter (see...
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Transcribed Image Text:6.57 Nitroglycerine, C,H,(NO,),(I), a powerful explosive used in
mining, detonates to produce a hot gaseous mixture of nitrogen,
water, carbon dioxide, and oxygen.
(a) Write a balanced equation for this reaction using the smallest
whole-number coefficients.
(b) If AHn = -2.29×10* kJ for the equation as written in
part (a), calculate AH; of nitroglycerine.
rxn
6.58 The common lead-acid car battery produces a large burst of
current, even at low temperatures, and is rechargeable. The reac-
tion that occurs while recharging a "dead" battery is
2PBSO,(s) + 2H,O(1)
(a) Use AH values from Appendix B to calculate AH
(b) Use the following equations to check your answer to part (a):
(1) Pb(s) + PbO,(s) + 2SO3(g) –→ 2PBSO4(s)
Pb(s) + PbO2(s) + 2H,SO,(1)
rxn
AHn = -768 kJ
%3D
Ixn
(2) SO3(g) + H,0(1)
H,SO,(1)
ΔΗ
AHn = -132 kJ
%3D
rxn
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