Question

To the nearest tenths, what is the equilibrium constant for the enzymatic hydrolysis of 0.1 M...

To the nearest tenths, what is the equilibrium constant for the enzymatic hydrolysis of 0.1 M A-O-PO32- to A-OH and inorganic phosphate (where A is some generalized molecule) given that 0.06% of the original A-O-PO32- remained after reaching equilibrium and the activity of water is unity.

Homework Answers

Answer #1

given the reaction is

A-0-P032- + H20 --> A-OH + inorganic phosphate

given

0.06 % of original A-0-P032- remained

so

A-0-P032- reacted = 0.1 - ( 6 x 10-5) = 0.09994

now

from the reaction we can see that

A-OH formed = A-0-P032- reacted = 0.09994

inorganic phosphate formed = A-O-P032- reacted = 0.09994

now

A-O-P032- + H20 --> A-OH + inorganic phosphate

the equilibrium constant is given by


Keq = [A-OH] [inorganic phosphate ] / [A-0-P032-]

so

Keq = 0.09994 x 0.09994 / 6 x 10-5

Keq = 166.47

so

the value of equilibrium constant is 166.47

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