Question

5. The alcohol CH CH SH has an unusually small pka of approximately 9.4 relative to ethanol, CH CH OH (pka - 16). a. Is CH,CH,SH more or less acidic than ethanol? (2 pts) b. Draw the conjugate base for each and explain the difference in acidity between CH, CH SH and CH CH2OH by analyzing the structures of the conjugate bases. (4 pts) c. Provide an arrow-pushing scheme for the reaction of one mole of CH,CH,SH with one mole of NaOH and provide the products of this reaction. (6 pts) 6. Consider the following equilibrium reaction: CH, COOH + HCO, pk, -4.19 C,H,COO- + H2CO, pk = 6.24 a. Calculate the equilibrium constant, Keq, for the acid-base reaction below: (5 pts) b. Describe which direction is favored in the equilibrium. Justify your answer (3 pts)

Answer 1

Solution=

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