Compound W, C8H17Br, and X, C8H17Cl, are products of the radical bromination (W), and chlorination (X), of 2,4-dimethylhexane. W
and X are each chiral. W reacts readily in water to form a chiral substitution product Y, C8H17OH. Reaction of a single enantiomer of W produces a single enantiomer of Y as the only substitution product. X likewise reacts readily in water though at a slower rate than W; a chiral substitution product Z, C8H17OH, is again formed. Unlike W, however, reaction of a single enantiomer of X produces Z that is nearly racemic. Propose structures for W and X.
1 answer:
Answer:
The possible structures are shown in figure.
Explanation:
The seven isomers that could be formed from the given compound due to radical halogenation are shown in the figure.
We have mentioned only chlorine as group for showing just the chiral nature of the compound.
A chiral compound has a carbon with all the four groups different from each other.
There are three structures which are chiral (as shown).
W is the brominated product
X is the chlorinated product.
1) W reacts readily in water to form a chiral substitution product Y, C8H17OH.
Reaction of a single enantiomer of W produces a single enantiomer of Y as the only substitution product.: It means that the substitution is SN2 which is possible if the compund is not tertiary.
2) X likewise reacts readily in water though at a slower rate than W; a chiral substitution product Z, C8H17OH, is again formed. Unlike W, however, reaction of a single enantiomer of X produces Z that is nearly racemic.
It means that it will undergo SN1 reaction,. So the alkyl halide must be tertiary.
The possible structures are shown in figure.
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Answer:
The equilibrium constant is
The equilibrium pressure for oxygen gas is
Explanation:
From the question we are told that
The equation of the chemical reaction is
The Gibbs free energy for is
The Gibbs free energy for is
The Gibbs free energy for is
The Gibbs free energy of the reaction is mathematically represented as
Substituting values
From the balanced equation
The Gibbs free energy of the reaction can also be represented mathematically as
Where R is the gas constant with a value of
T is the temperature with a given value of
K is the equilibrium constant
Now equilibrium constant for a reaction that contain gas is usually expressed in term of the partial pressure of the reactant and products that a gaseous in state
The equilibrium constant for this chemical reaction is mathematically represented as
Where is the equilibrium pressure of oxygen
The p subscript shows that we are obtaining the equilibrium constant using the partial pressure of gas in the reaction
Now equilibrium constant the subject on the second equation of the Gibbs free energy of the reaction
Substituting values
Now substituting this into the equation above to obtain the equilibrium of oxygen
multiplying through by