Given the dissociation constants for each deprotonation, what is the dissociation constant for the overall reaction (Ka’’)? H3PO4 + H2O H2PO4- + H3O+ Ka = 7.11 x 10-3 H2PO4- + H2O HPO42- + H3O+ Ka’ = 6.32 x 10-8 Overall: H3PO4 + 2 H2O HPO42- + 2 H3O+ Ka’’ = ? 1.13 x 105 4.49 x 10-10 8.89 x 10-6 2.23 x 109

Given the dissociation constants for each deprotonation, what is the dissociation constant for the overall reaction (Ka’’)? H3PO4 + H2O H2PO4- + H3O+ Ka = 7.11 x 10-3 H2PO4- + H2O HPO42- + H3O+ Ka’ = 6.32 x 10-8 Overall: H3PO4 + 2 H2O HPO42- + 2 H3O+ Ka’’ = ? 1.13 x 105 4.49 x 10-10 8.89 x 10-6 2.23 x 109

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter7: Reaction Rates And Chemical Equilibrium

Section: Chapter Questions

Problem 7.42P

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