Homework Answers
Answer 9 ;
Delta H = 2*431-(436+242) = 184 kJ/mol. ( delta H= Enthalpy of product - enthalpy of reactants)
Answer 10;
Delta H = (328+328+1072+431) -( 328+328+328+413)
= 762 kJ
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Use the bond enthalpies in the table below to determine the enthalpy of reaction in the...
Calculate the bond energy for the formation of boron trifluoride. Br-Br + 3 F- F -...
Calculate the bond energy for the formation of boron trifluoride. Br-Br + 3 F- F - 2 Br- F F-F 155 0-H 0-0 O-F 0-CI O-I 463 146 190 203 234 Cl-F 253 Cl-C1 242 Br-F 237 Br-Cl 218 Br-Br 193 Average Bond Enthalpies (kJ/mol) Single Bonds C-H 413 N-H 391 C-C 348 N-N 163 C-N 293 N-0 201 C-0 358 N-F 272 C-F 485 N-CI 200 C-C1328 N-Br 243 C-Br 276 C-1 240 H-H 436 C-S 259 H-F 567...
5.84 Use bond enthalpies in Table 5.4 to estimate AH for each of the following reactions:...
5.84 Use bond enthalpies in Table 5.4 to estimate AH for each of the following reactions: (a) Br Br Br--©-H + C1-C1 —— Br-C-C1 + 01-H Br Br (b) H-C-H + 2 O=0 → 0=C=0 + 2 H-0-H Н F-F 155 O=0 463 146 495 190 203 234 Cl-F CI-CI 253 242 TABLE 5.4 Average Bond Enthalpies (kJ/mol) CH 413N -H 391 0-H C-C 348 N-N 163 0-0 C=C 614 N-O 201 C-N N-F 272 O-F C-O 358 N-CI 200...
Problem 5.83 Use bond enthalpies in the table below to estimate ?H for each of the...
Problem 5.83
Use bond enthalpies in the table below to estimate ?H
for each of the following reactions.
Problem 5.83 Part A Use bond enthalpies in the table below to estimate ? 1 for each of the following reactions H-H(g) + Br-Br(g) ? 2H-Br(g) Express your answer in kilojoules to 3 significant figures Average Bond Enthalpies (kJ/mol) 103 kJ C-H 413 N-H 391 O-H 463 F-F 155 C-C 348 N-N 163 O-O 146 C-C 614 N-O 201 O O 495...
Using the bond enthalpies in the Average Bond Enthalpies table, determine the approximate enthalpy (in kJ)...
Using the bond enthalpies in
the Average Bond Enthalpies table, determine the approximate
enthalpy (in kJ) for each of the following reactions. (Assume the
average bond enthalpy of the Cl–F bond is 254 kJ/mol.) (a) Cl2(g) +
3 F2(g) → 2 ClF3(g) (b) H2C=CH2(g) + H2(g) → H3CCH3(g) (c) 2
CH3(C=O)H(g) + 5 O2(g) → 4 CO2(g) + 4 H2O(g)
ITITIT Average Bond Enthalpies AH bond (kJ/mol) bond AHond (kJ/mol) bond AH bond (kJ/mol) bond bond AH bond (kJ/mol) С-Н...
a. b. For b is this table below: Bond Bond Energy, D (kJ/mol) C=0 1072 C1-C1...
a.
b. For b is this table below:
Bond Bond Energy, D (kJ/mol) C=0 1072 C1-C1 242 C-CI 339 C=0 732 Using the values of bond energy from the table above, estimate the enthalpy change for the following reaction: CO(g) + Cl2(9)—>COC12(E) DkJ Using average bond enthalpies (linked above), estimate the enthalpy change for the following reaction: H2(g) + 12(8)—2HI(g) kJ Submit Answer Retry Entire Group 6 more group attempts remaining Single Bonds H C N O F Si P...
Use average bond enthalpies (linked above) to calculate the enthalpy change for the following gas-phase reaction...
Use average bond enthalpies (linked above) to calculate the enthalpy change for the following gas-phase reaction CH4(g)2F2(g) CH2F2(g) + 2HF(g) To analyze the reaction, first draw Lewis structures for all reactant and product molecules Draw the reaction using separate sketchers for each species. Separate multiple reactants and/or products using the sign from the drop-down arrow. Separate reactants from products using the » symbol from the drop-down menu Remember to include nonbonding valence electrons in your Lewis structures. ChemDoodle HMolecularptructgre O...
Using Table 9.4, calculate an approximate enthalpy (in kJ) for the reaction of 1.10 g gaseous...
Using Table 9.4, calculate an approximate enthalpy (in kJ) for
the reaction of 1.10 g gaseous methanol (CH3OH) in excess molecular
oxygen to form gaseous carbon dioxide and gaseous water. (Hint,
remember to first write the balanced equation.)
TABLE 9.4 Bond Energies (kJ/mol)* Single Bonds C-H 414 C-C 348 C-N 293 C-O 351 C-F 439 C-CI 328 C-Br 276 C-1 238 C-S 259 N-H 889O H 463 FF 159 N-N 163OO 146 C F 253 N-O 201O-F 190 CCI 242...
< Chapter 8 HW Problem 8.70 - Enhanced - with Feedback < 12 of 15 >...
< Chapter 8 HW Problem 8.70 - Enhanced - with Feedback < 12 of 15 > Using bond enthalpies in the table, estimate Al for the following gas-phase reactions. un Review | Constants Periodic Table Part A Estimate AH for the reaction. Br-c-H+CI-C1B -C-CI+H-CI 463 146 190 203 234 Express your answer using three significant figures. IVO AL O 2 ? Average Bond Enthalpies (kJ/mol) Single Bonds C-H 413 N-H 391 0-H C-C 348 N-N 163 0-0 C-N 293 N-...
.The enthalpy change for the following reaction is -137 kJ. The enthalpy change for the following...
.The enthalpy change for the following reaction is -137 kJ. The enthalpy change for the following reaction is -137 kJ. C2H4(g) + H2(g) -> C2H6(g) To analyze the reaction, first draw Lewis structures for all reactant and product molecules. Estimate the C-C bond energy in C2H6(g) , using tabulated bond energies (linked above) for the remaining bonds H C N O F Si P S Cl Br I H 436 413 391 463 565 318 322 347 432 366 299...
Worksheet 8- Rev 10 Exercise B-Using Hess' Law to determine the enthalpy of a reaction. Using...
Worksheet 8- Rev 10 Exercise B-Using Hess' Law to determine the enthalpy of a reaction. Using the table below, calculate the enthalpy of each of the following reactions. For partial credit, show all of your work. Average Bond Energies (kj/mol) Multiple Bonds Single Bonds C C 614 149 H-H 432 391 160 272 1-1 N-H N-N 839 CC O-O 208 175 H-F H-CI 565 -CI 495 745 427 N-F 1-Br H-Br 363 C-O N-CI 200 H-I 1072 607 295 347...
Calculate the bond energy for the formation of boron trifluoride. Br-Br + 3 F- F - 2 Br- F F-F 155 0-H 0-0 O-F 0-CI O-I 463 146 190 203 234 Cl-F 253 Cl-C1 242 Br-F 237 Br-Cl 218 Br-Br 193 Average Bond Enthalpies (kJ/mol) Single Bonds C-H 413 N-H 391 C-C 348 N-N 163 C-N 293 N-0 201 C-0 358 N-F 272 C-F 485 N-CI 200 C-C1328 N-Br 243 C-Br 276 C-1 240 H-H 436 C-S 259 H-F 567...
5.84 Use bond enthalpies in Table 5.4 to estimate AH for each of the following reactions: (a) Br Br Br--©-H + C1-C1 —— Br-C-C1 + 01-H Br Br (b) H-C-H + 2 O=0 → 0=C=0 + 2 H-0-H Н F-F 155 O=0 463 146 495 190 203 234 Cl-F CI-CI 253 242 TABLE 5.4 Average Bond Enthalpies (kJ/mol) CH 413N -H 391 0-H C-C 348 N-N 163 0-0 C=C 614 N-O 201 C-N N-F 272 O-F C-O 358 N-CI 200...
Problem 5.83
Use bond enthalpies in the table below to estimate ?H
for each of the following reactions.
Problem 5.83 Part A Use bond enthalpies in the table below to estimate ? 1 for each of the following reactions H-H(g) + Br-Br(g) ? 2H-Br(g) Express your answer in kilojoules to 3 significant figures Average Bond Enthalpies (kJ/mol) 103 kJ C-H 413 N-H 391 O-H 463 F-F 155 C-C 348 N-N 163 O-O 146 C-C 614 N-O 201 O O 495...
Using the bond enthalpies in
the Average Bond Enthalpies table, determine the approximate
enthalpy (in kJ) for each of the following reactions. (Assume the
average bond enthalpy of the Cl–F bond is 254 kJ/mol.) (a) Cl2(g) +
3 F2(g) → 2 ClF3(g) (b) H2C=CH2(g) + H2(g) → H3CCH3(g) (c) 2
CH3(C=O)H(g) + 5 O2(g) → 4 CO2(g) + 4 H2O(g)
ITITIT Average Bond Enthalpies AH bond (kJ/mol) bond AHond (kJ/mol) bond AH bond (kJ/mol) bond bond AH bond (kJ/mol) С-Н...
a.
b. For b is this table below:
Bond Bond Energy, D (kJ/mol) C=0 1072 C1-C1 242 C-CI 339 C=0 732 Using the values of bond energy from the table above, estimate the enthalpy change for the following reaction: CO(g) + Cl2(9)—>COC12(E) DkJ Using average bond enthalpies (linked above), estimate the enthalpy change for the following reaction: H2(g) + 12(8)—2HI(g) kJ Submit Answer Retry Entire Group 6 more group attempts remaining Single Bonds H C N O F Si P...
Use average bond enthalpies (linked above) to calculate the enthalpy change for the following gas-phase reaction CH4(g)2F2(g) CH2F2(g) + 2HF(g) To analyze the reaction, first draw Lewis structures for all reactant and product molecules Draw the reaction using separate sketchers for each species. Separate multiple reactants and/or products using the sign from the drop-down arrow. Separate reactants from products using the » symbol from the drop-down menu Remember to include nonbonding valence electrons in your Lewis structures. ChemDoodle HMolecularptructgre O...
Using Table 9.4, calculate an approximate enthalpy (in kJ) for
the reaction of 1.10 g gaseous methanol (CH3OH) in excess molecular
oxygen to form gaseous carbon dioxide and gaseous water. (Hint,
remember to first write the balanced equation.)
TABLE 9.4 Bond Energies (kJ/mol)* Single Bonds C-H 414 C-C 348 C-N 293 C-O 351 C-F 439 C-CI 328 C-Br 276 C-1 238 C-S 259 N-H 889O H 463 FF 159 N-N 163OO 146 C F 253 N-O 201O-F 190 CCI 242...
< Chapter 8 HW Problem 8.70 - Enhanced - with Feedback < 12 of 15 > Using bond enthalpies in the table, estimate Al for the following gas-phase reactions. un Review | Constants Periodic Table Part A Estimate AH for the reaction. Br-c-H+CI-C1B -C-CI+H-CI 463 146 190 203 234 Express your answer using three significant figures. IVO AL O 2 ? Average Bond Enthalpies (kJ/mol) Single Bonds C-H 413 N-H 391 0-H C-C 348 N-N 163 0-0 C-N 293 N-...
Worksheet 8- Rev 10 Exercise B-Using Hess' Law to determine the enthalpy of a reaction. Using the table below, calculate the enthalpy of each of the following reactions. For partial credit, show all of your work. Average Bond Energies (kj/mol) Multiple Bonds Single Bonds C C 614 149 H-H 432 391 160 272 1-1 N-H N-N 839 CC O-O 208 175 H-F H-CI 565 -CI 495 745 427 N-F 1-Br H-Br 363 C-O N-CI 200 H-I 1072 607 295 347...
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