Phenol (hydroxybenzene) behaves as a weak acid.a) Write out the equilibrium equation for its partial dissociation in water.b) Write out the expression for the acid dissociation constant, Ka.d) Draw the conjugate base of phenol and show how it is stabilised by resonance.e) Compare and explain the acidity of phenol (p = 9.9) with that of:cyclohexanol (pk = 16.0)3-fluorophenol (pK₁ = 9.3)4-acetylphenol (pK, = 8.1)

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Phenol (hydroxybenzene) behaves as a weak acid. a) Write out the equilibrium equation for its partial dissociation in water. b) Write out the expression for the acid dissociation constant, K₂. d) Draw the conjugate base of phenol and show how it is stabilised by resonance. e) Compare and explain the acidity of phenol (PK = 9.9) with that of: cyclohexanol (PK₁ = 16.0) 3-fluorophenol (p=9.3) 4-acetylphenol (p = 8.1)

Phenol (hydroxybenzene) behaves as a weak acid. a) Write out the equilibrium equation for its partial dissociation in water. b) Write out the expression for the acid dissociation constant, K₂. d) Draw the conjugate base of phenol and show how it is stabilised by resonance. e) Compare and explain the acidity of phenol (PK = 9.9) with that of: cyclohexanol (PK₁ = 16.0) 3-fluorophenol (p=9.3) 4-acetylphenol (p = 8.1)

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter22: Organic Chemistry

Section: Chapter Questions

Problem 60QAP: Write an equation for the reaction of chloroacetic acid (Ka=1.5103) with trimethylamine (Kb=5.9105)...

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Question

Phenol (hydroxybenzene) behaves as a weak acid.
a) Write out the equilibrium equation for its partial dissociation in water.
b) Write out the expression for the acid dissociation constant, Ka.
d) Draw the conjugate base of phenol and show how it is stabilised by resonance.
e) Compare and explain the acidity of phenol (p = 9.9) with that of:
cyclohexanol (pk = 16.0)
3-fluorophenol (pK₁ = 9.3)
4-acetylphenol (pK, = 8.1)

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