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Suppose a biochemist has 10 mL of a 1.0 M solution of a compound with two ionizable groups at a pH of 7.50. She

Suppose a biochemist has 10 mL of a 1.0 M solution of a compound with two ionizable groups at a pH of 7.50. She adds 10.0 mL of 1.0 M HCI, which changes the pH to 3.60. The pK, value of one of the groups is pK = 4.00 and it is known that pkz is between 7 and 10. What is the exact value of pK2? %3D Enter your answer to two significant figures.

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