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Author Question: Given the listed average bond energies, calculate the enthalpy change for the production of of ... (Read 70 times)

Starlight

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on: Jul 8, 2021

Question 1

Given the following bond lengths in pm:

NN, 145; NN, 123; BrBr, 228

What is the best estimate of the NBr bond length in NBr3 in pm?
◦ 373 pm
◦ 125 pm
◦ 351 pm
◦ 216 pm
◦ 561 pm

Question 2

Given the listed average bond energies, calculate the enthalpy change for the production of of methanol by the reaction:  

CO2(g) + 3 H2(g) → CH3OH(g) + H2O(g)

CO(360 kJ/mol)  CO(736 kJ/mol) HH(436 kJ/mol)    
HO(464 kJ/mol) HC(414 kJ/mol)
◦ +214 kJ
◦ +639 kJ
◦ 0 kJ
◦ -214 kJ
◦ -108 kJ
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
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Marked as best answer by Starlight on Jul 8, 2021

poopface

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Reply #1 on: Jul 8, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Starlight

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Reply 2 on: Jul 8, 2021
Gracias!

nyrave

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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