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The acid ha ka 42 times 10-4 equilibrates between water


The acid HA (Ka = 4.2 × 10-4) equilibrates between water and ether.

(a) Define the distribution coefficient (D) and the partition coefficient (K) for this system.

(b) Calculate D at pH 4.00 if K= 92.

(c) Will D be greater or less at pH 3.50 than at pH 4.00? Explain why.

(d) At what pH will D be unity?

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Chemistry: The acid ha ka 42 times 10-4 equilibrates between water
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