help please Molecule #2: tritertbutylmethaneCPopyasteCH3H3CCH3`CH3H3CCH3ChemDoodleCorrect name: 2,6-dimethyl-4-tertiarybutylheptane Following are the alternative chair conformations for trans-1-bromo-2-methylcyclohexane:BrBrCH3ČH3AUsing the data for AG for monosubstituted cyclohexanes at room temperature (25°C) and the representative value* for the gauche interaction of twoequatorially positioned substituents in the 1,2-position:equatorialGroupNH2axialGroupAG° (kJ/mol)AG° (kJ/mol)C=N-0.8-5.9Br-2.4CH3-7.3OH-3.91,2-gauche3.8a) Calculate the difference in the Gibbs free energy between the second and first conformation including the algebraic sign.kJ/molb) Given your value in (a), calculate the percent of the chair, indicated as B, presented in an equilibrium mixture of the conformers at 25°C.*The actual value will depend on the substituents.The values of the gas constant and the temperature for 25°C are 8.314 JK-'mol and 298 K respectively.

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Answered: Molecule #2: tritertbutylmethane C P…

Molecule #2: tritertbutylmethane C P opy aste C CH3 H3C CH3 CH3 H;C CH3 ChemDoodle Correct name: 2,6-dimethyl-4-tertiarybutylheptane

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

help please

Molecule #2: tritertbutylmethane
C
P
opy
aste
CH3
H3C
CH3
`CH3
H3C
CH3
ChemDoodle
Correct name: 2,6-dimethyl-4-tertiarybutylheptane

Following are the alternative chair conformations for trans-1-bromo-2-methylcyclohexane:
Br
Br
CH3
ČH3
A
Using the data for AG for monosubstituted cyclohexanes at room temperature (25°C) and the representative value* for the gauche interaction of two
equatorially positioned substituents in the 1,2-position:
equatorial
Group
NH2
axial
Group
AG° (kJ/mol)
AG° (kJ/mol)
C=N
-0.8
-5.9
Br
-2.4
CH3
-7.3
OH
-3.9
1,2-gauche
3.8
a) Calculate the difference in the Gibbs free energy between the second and first conformation including the algebraic sign.
kJ/mol
b) Given your value in (a), calculate the percent of the chair, indicated as B, presented in an equilibrium mixture of the conformers at 25°C.
*The actual value will depend on the substituents.
The values of the gas constant and the temperature for 25°C are 8.314 JK-'mol and 298 K respectively.

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