1) For each compound, complete the following steps: a) Write a complete, balanced combustion equation using Lewis structures for all species. An example for methane is shown below. b) Make a list of all the bonds that are broken and formed during the reaction (see also example below). c) Calculate AH in kJ/mol using the equation above.

Chemistry by OpenStax (2015-05-04)
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Chapter8: Advanced Theories Of Covalent Bonding
Section: Chapter Questions
Problem 2E: Draw a curve that describes the energy of a system with H and Cl atoms at varying distances. Then,...
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Do this for ethanol(C2H5OH)

1) For each compound, complete the following steps:
a) Write a complete, balanced combustion equation using Lewis structures for all
species. An example for methane is shown below.
b)
Make a list of all the bonds that are broken and formed during the reaction (see
also example below).
c) Calculate AH in kJ/mol using the equation above.
d) Calculate the AH in kJ/g.
Ex. Balanced Combustion Equation for Methane (CH4)
H
H-C-H + 20=0
H
Bond Broken (energy absorbed)
4 C-H bonds
2 0-0 bonds
0=c=0 + 2 H-O-H
Bonds Formed (energy released)
2 C=0 bonds
4 O-H bonds
Transcribed Image Text:1) For each compound, complete the following steps: a) Write a complete, balanced combustion equation using Lewis structures for all species. An example for methane is shown below. b) Make a list of all the bonds that are broken and formed during the reaction (see also example below). c) Calculate AH in kJ/mol using the equation above. d) Calculate the AH in kJ/g. Ex. Balanced Combustion Equation for Methane (CH4) H H-C-H + 20=0 H Bond Broken (energy absorbed) 4 C-H bonds 2 0-0 bonds 0=c=0 + 2 H-O-H Bonds Formed (energy released) 2 C=0 bonds 4 O-H bonds
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