Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Question
Use the following table for questions 33-36. AH° (kJ/mol) Substance Substance AH°; (kJ/mol) NH3(g) NO(g) C,H2(g) C,H6(g) -986.6 -46.19 Ca(OH)2(s) H3ASO4(aq) Ca(H2ASO4)2(aq) H,O(1) -900.4 +90.37 -2346.0 +226.78 -285.9 -84.68 kJ. 33. Given the data in the table below, AH°pn for the following reaction is Ca(OH)2(s) + 2H;AsO4(aq) → Ca(H2ASO4)2(aq) +2H2O(1) -4219 A) B) -130.4 -4519 D) -76.4 Calculate AH,xn° for 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H20(1) 34. A) -1169 kJ В) +1169 kJ C) -149.3 kJ D) 149.3 kJ Using standard enthalpies of formation, calculate the heat of hydrogenation of acetylene gas, C,H2(g), to form ethane gas. 35. C,H>(g) + 2H2(g) → C¿Hó(g) B) -311.46 kJ C) -142.1 kJ D +311.46 kJ A) 142.1 kJ
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Transcribed Image Text:Use the following table for questions 33-36. AH° (kJ/mol) Substance Substance AH°; (kJ/mol) NH3(g) NO(g) C,H2(g) C,H6(g) -986.6 -46.19 Ca(OH)2(s) H3ASO4(aq) Ca(H2ASO4)2(aq) H,O(1) -900.4 +90.37 -2346.0 +226.78 -285.9 -84.68 kJ. 33. Given the data in the table below, AH°pn for the following reaction is Ca(OH)2(s) + 2H;AsO4(aq) → Ca(H2ASO4)2(aq) +2H2O(1) -4219 A) B) -130.4 -4519 D) -76.4 Calculate AH,xn° for 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H20(1) 34. A) -1169 kJ В) +1169 kJ C) -149.3 kJ D) 149.3 kJ Using standard enthalpies of formation, calculate the heat of hydrogenation of acetylene gas, C,H2(g), to form ethane gas. 35. C,H>(g) + 2H2(g) → C¿Hó(g) B) -311.46 kJ C) -142.1 kJ D +311.46 kJ A) 142.1 kJ
Calculate the standard enthalpy of formation of solid calcium carbide. CaC (s) + 2 H20(1) → Ca(OH)2(s) + C,H2(g) 36. =- 129.9 kJ/mol 1xn A) +966.7 kJ/mol -966.7 kJ/mol -58.1 kJ/mol +58.1 kJ/mol
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Transcribed Image Text:Calculate the standard enthalpy of formation of solid calcium carbide. CaC (s) + 2 H20(1) → Ca(OH)2(s) + C,H2(g) 36. =- 129.9 kJ/mol 1xn A) +966.7 kJ/mol -966.7 kJ/mol -58.1 kJ/mol +58.1 kJ/mol
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