Select all the correct statements from the list below. It is possible to earn ne
ID: 850033 • Letter: S
Question
Select all the correct statements from the list below. It is possible to earn negative points for this question by selecting incorrect statements.
Caproic acid is soluble in both water and toluene.
Nonpolar substances dissolve in nonpolar solvents.
An equilibrium constant value of K < 1 indicates that the organic acid exists in greater concentrations in the water layer at equilibrium.
The equilibrium constant for the distribution of an organic acid between toluene and water does not depend on whether the acid was originally dissolved in water or in toluene.
An equilibrium constant value of K = 1 indicates that the organic acid exists in equal concentrations in the two layers at equilibrium.
Organic acids with longer hydrocarbon portions are more likely to distribute into the toluene layer than organic acids with shorter hydrocarbon portions.
An equilibrium constant value of K > 1 indicates that the organic acid exists in greater concentrations in the toluene layer at equilibrium.
Butyric acid is soluble in both water and toluene.
Polar substances dissolve in polar solvents.
Acetic acid is soluble in both water and toluene.
Caproic acid is soluble in both water and toluene.
Nonpolar substances dissolve in nonpolar solvents.
An equilibrium constant value of K < 1 indicates that the organic acid exists in greater concentrations in the water layer at equilibrium.
The equilibrium constant for the distribution of an organic acid between toluene and water does not depend on whether the acid was originally dissolved in water or in toluene.
An equilibrium constant value of K = 1 indicates that the organic acid exists in equal concentrations in the two layers at equilibrium.
Organic acids with longer hydrocarbon portions are more likely to distribute into the toluene layer than organic acids with shorter hydrocarbon portions.
An equilibrium constant value of K > 1 indicates that the organic acid exists in greater concentrations in the toluene layer at equilibrium.
Butyric acid is soluble in both water and toluene.
Polar substances dissolve in polar solvents.
Acetic acid is soluble in both water and toluene.
Explanation / Answer
1) Caproic acid is soluble in both water and toluene: correct
Caproic acid is hexanoic acid. due to hydrocarbon chain it is soluble in non polar solvent like toluene and due to polar carboxylic group it is soluble in water [very less solubility though]
2) Non polar substance are soluble in non polar solvents: Correct [Like dissolves like]
3) An equilibrium constant value of K < 1 indicates that the organic acid exists in greater concentrations in the water layer at equilibrium. : Incorrect,
An equilibrium constant value of K < 1 indicates that the organic acid exists in greater concentrations in the organic layer at equilibrium
4) Organic acids with longer hydrocarbon portions are more likely to distribute into the toluene layer than organic acids with shorter hydrocarbon portions.Correct
As with increase in chain length the non polar part increases making it more soluble in non polar solvent like toluene
5) An equilibrium constant value of K > 1 indicates that the organic acid exists in greater concentrations in the toluene layer at equilibrium. Incorrect
6) Butyric acid is soluble in both : correct
7) Polar substances dissolve in polar solvents. Correct [again like dissolves like]
8) Acetic acid is soluble in both water and toluene: Correct
it is soluble in water due to hydrogen bond and in toluene due to non polar ethyl group
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