The Equilibrium Constant for the Acid Ionization of Mercaptoethanol (HSCH₂CH₂OH

question 27

Multiple Choice

The equilibrium constant for the acid ionization of mercaptoethanol (HSCH₂CH₂OH ) is 1.91  10^10_. HSCH₂CH₂OH(aq) H^(aq)  SCH₂CH₂OH^(aq)
Which of the following is true regarding this equilibrium?
I.The reaction is product-favored.
II.The reaction is reactant-favored.
III.Equilibrium lies far to the right.
IV.Equilibrium lies far to the left.

• A)I and III
• B)I and IV
• C)II and III
• D)II and IV
• E)None are true, as the concentrations of reactants and products are comparable.

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