Calculate the ratio of equatorial to axial isopropylcyclohexane at 24 °C.
(ΔG° = -9.0 kJ/mol for the transformation axial → equatorial, and the gas constant, R, is 8.314 J/K·mol. Enter your answer to two significant figures.)
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Calculate the ratio of equatorial to axial isopropylcyclohexane at 24 °C. (ΔG° = -9.0 kJ/mol for...
On a separate sheet of paper, draw the two alternative chair
conformations for the product formed by the addition of bromine to
4-tert-butylcyclohexene. The Gibbs free-energy differences between
equatorial and axial substituents on a cyclohexane ring are 21
kJ/mol for tert-butyl, and 2.3 kJ/mol for bromine. Calculate the
ratio of the two observed products at 46.0 °C using the following
equation: The gas constant, R, is 8.314 J/K·mol. (Enter your answer
to two significant figures.) Ratio: ____ to 1 Major...
On a separate sheet of paper, draw the two alternative chair conformations for the product formed by the addition of bromine to 4-tert-butylcyclohexene. The Gibbs free-energy differences between equatorial and axial substituents on a cyclohexane ring are 21 kJ/mol for tert-butyl, and 2.3 kJ/mol for bromine. Calculate the ratio of the two observed products at 34.0 °C using the following equation: AG° = – RT In Keg The gas constant, R, is 8.314 J/K mol. (Enter your answer to two...
For a particular reaction at 172.4 °C, Δ?=−269.73 kJ/mol ΔG=−269.73 kJ/mol, and Δ?=970.33 J/(mol⋅K) Calculate ΔG for this reaction at 14.3 °C.
Consider these hypothetical chemical reactions: A⇌B,ΔG= 13.7 kJ/mol B⇌C,ΔG= -27.2 kJ/mol C⇌D,ΔG= 6.20 kJ/mol What is the free energy, ΔG, for the overall reaction, A⇌D? Express your answer with the appropriate units. ΔG = Firefly luciferase is the enzyme that allows fireflies to illuminate their abdomens. Because this light generation is an ATP-requiring reaction, firefly luciferase can be used to test for the presence of ATP. In this way, luciferase can test for the presence of life. The coupled reactions...
For a particular reaction at 205.1205.1 °C, ΔG=−45.90 kJ/molΔG=−45.90 kJ/mol, and ΔS=395.61 J/(mol⋅K)ΔS=395.61 J/(mol⋅K). Calculate ΔG for this reaction at −6.1−6.1 °C.
Calculate ΔG°(in kJ/mol) for the reaction NO2(g) + H2O(l) --> HNO3(l) + NO(g). ( unbalanced) Substance ΔGfo(kJ/mol) NO2(g) 51.8 NO(g) 86.7 HNO3(l) -79.9 H2O(l) -237.2 Write answer to two significant figures and correct sign.
The ΔG°′ for the conversion of glucose-1-phosphate (G1P) to glucose-6-phosphate is -7.1 kJ/mol. What is the ratio of the concentration of G6P to the concentration of G1P that provides a free energy change of –2.0 kJ · mol–1 at 37°C. [Express your answer in decimal form using 2 significant figures.]
Following are the alternative chair conformations for
trans-1,4-dimethylcyclohexane:
.
Using the data for ΔG for monosubstituted cyclohexanes at room
temperature (25ºC) and the representative value* for the gauche
interaction of two equatorially positioned substituents in the
1,2-position:
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...
1. 1) luciferin+O2 ⇌ oxyluciferin+light 2) ATP⇌AMP+PPi ΔG∘=−31.6 kJ/mol If the overall ΔG∘ of the coupled reaction is -1.21 kJ/mol , what is the equilibrium constant, K, of the first reaction at 11∘C? Round your answer to 3 significant figures. 2. When methanol (CH3OH) is combusted, such as when in a gasoline blend, the following reaction occurs: 2CH3OH(l)+3O2(g)→2CO2(g)+4H2O(g) Based on the standard free energies of formation given, what is the standard free energy change for this reaction? Report the answer...
Calculate ΔG∘R at 594 K assuming that
ΔH∘R is constant in the temperature interval of
interest.
Part A Calculate ΔGe for the reaction Express your answer to four significant figures and include the appropriate units. CO(g) + ,02 (g) CO2 (g) at 298.15 K ΔGR: -2572x105 J-mol 1 Previous Answers Correct Part B Calculate ΔGk at 594 K assuming that ΔΗ¡ is constant in the temperature interval of interest Express your answer to four significant figures and include the appropriate...