Phosphate buffers are important in regulating the pH of intracellular fluids at pH
Chapter 15, Problem 15.109(choose chapter or problem)
Phosphate buffers are important in regulating the pH of intracellular fluids at pH values generally between 7.1 and 7.2. a. What is the concentration ratio of H2PO4 2 to HPO4 22 in intracellular fluid at pH 5 7.15? H2PO4 2 1aq2mHPO4 22 1aq2 1 H1 1aq2 Ka 5 6.2 3 1028 b. Why is a buffer composed of H3PO4 and H2PO4 2 ineffective in buffering the pH of intracellular fluid? H3PO4 1aq2mH2PO4 2 1aq2 1 H1 1aq2 Ka 5 7.5 3 1023
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