7) Propane is a gas commonly used to fuel gas grills and camping stoves. The structure of propane isshown below.TABLE 8.4 Average Bond Enthalpies (k)/mol)Single BondsHC-HN-HN-NN-ON-F413391O-H463F-F155C-CC-NC-OO-OO-FO-CI348163146H.H.C-F253C-CI 242293201190358272203:-FC-CIC-BrC-I485N-CIN-Br200234HHH328243Br-F237S-HS-FS-CIS-BrS-SBr-CI 218Br-Br 193276339327253218266Propane240259H-H436567431366299C-SH-FH-CIH-BrH-ISi-HSi-Si323226-CII-Br208175151Si-CSi-O301368Multiple BondsC=CC=C614839615N=NNENN-O418495941607SOSS5234188917991072a) Write the balanced chemical equation for the combustion of propane.b) Draw out lewis dot structures to represent all molecules of all products and reactants in thisreaction. The number of each molecule should be reflected in the balanced equation.c) Calculate the heat of combustion for propane using the bond enthalpies in the table.d) 1.00 mol of propane is used to roast marshmallows. It was determined that the amount ofenergy absorbed by the marshmallows was only 800 kJ. Explain this observation.

7) Propane is a gas commonly used to fuel gas grills and camping stoves. The structure of propane is shown below. TABLE 8.4 Average Bond Enthalpies (k)/mol) Single Bonds C-H C-C C-N O-H O-O O-F O-CI 413 348 N-H N-N N-O 391 163 463 F-F 155 146 H 293 201 190 C-F 253 C-CI 242 C-O C-F 358 N-F 272 203 N-CI N-Br 485 200 234 H H C-CI C-Br 328 276 240 259 Br-F 237 Br-CI 218 Br-Br 193 243 S-H S-F S-CI S-Br S-S 339 327 253 218 266 Propane C-I C-S H-H H-F H-CI H-Br H-I 436 567 431 366 299 -CI -Br 208 175 151 Si-H Si-Si SiC Si-O 323 226 301 368 Multiple Bonds C-C N-N 614 839 615 891 799 1072 418 495 941 607 NEN N=O SO 523 418 a) Write the balanced chemical equation for the combustion of propane. b) Draw out lewis dot structures to represent all molecules of all products and reactants in this reaction. The number of each molecule should be reflected in the balanced equation. c) Calculate the heat of combustion for propane using the bond enthalpies in the table. d) 1.00 mol of propane is used to roast marshmallows. It was determined that the amount of energy absorbed by the marshmallows was only 800 kJ. Explain this observation.

7) Propane is a gas commonly used to fuel gas grills and camping stoves. The structure of propane is shown below. TABLE 8.4 Average Bond Enthalpies (k)/mol) Single Bonds C-H C-C C-N O-H O-O O-F O-CI 413 348 N-H N-N N-O 391 163 463 F-F 155 146 H 293 201 190 C-F 253 C-CI 242 C-O C-F 358 N-F 272 203 N-CI N-Br 485 200 234 H H C-CI C-Br 328 276 240 259 Br-F 237 Br-CI 218 Br-Br 193 243 S-H S-F S-CI S-Br S-S 339 327 253 218 266 Propane C-I C-S H-H H-F H-CI H-Br H-I 436 567 431 366 299 -CI -Br 208 175 151 Si-H Si-Si SiC Si-O 323 226 301 368 Multiple Bonds C-C N-N 614 839 615 891 799 1072 418 495 941 607 NEN N=O SO 523 418 a) Write the balanced chemical equation for the combustion of propane. b) Draw out lewis dot structures to represent all molecules of all products and reactants in this reaction. The number of each molecule should be reflected in the balanced equation. c) Calculate the heat of combustion for propane using the bond enthalpies in the table. d) 1.00 mol of propane is used to roast marshmallows. It was determined that the amount of energy absorbed by the marshmallows was only 800 kJ. Explain this observation.

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter12: Chemical Bonding

Section: Chapter Questions

Problem 94AP: Which of the following statements is false concerning bonding? Elements with extremely different...

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