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Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter16: Reactions Between Acids And Bases
Section: Chapter Questions
Problem 16.83QE
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Phosphoric acid is used widely in fertilizers and is used in certain types of pop to make them more tart. It is a triprotic acid with a chemical formula H3PO4(aq). Estimate the pH and the concentrations of all species at equilibrium in a 0.520 M solution of phosphoric acid. The three acid dissociation steps are as follows: H3PO4 (aq) + H2O (1) H2PO4 (aq) + H3O+ (aq) H2PO4 (aq) + H2O (1) HPO42 (aq) + H3O+ (aq) HPO4 (aq) + H2O (1) PO4 (aq) + H3O+ (aq) Ка = 6.92 × 10 3 Kaz = 6.17 x 108 Kas 4.79 x 10-13 a) H3PO4]: b) H2PO4]: c) [HPO2]: d) PO3: e) [H3O]: f) pH: M M M M M
Transcribed Image Text:Phosphoric acid is used widely in fertilizers and is used in certain types of pop to make them more tart. It is a triprotic acid with a chemical formula H3PO4(aq). Estimate the pH and the concentrations of all species at equilibrium in a 0.520 M solution of phosphoric acid. The three acid dissociation steps are as follows: H3PO4 (aq) + H2O (1) H2PO4 (aq) + H3O+ (aq) H2PO4 (aq) + H2O (1) HPO42 (aq) + H3O+ (aq) HPO4 (aq) + H2O (1) PO4 (aq) + H3O+ (aq) Ка = 6.92 × 10 3 Kaz = 6.17 x 108 Kas 4.79 x 10-13 a) H3PO4]: b) H2PO4]: c) [HPO2]: d) PO3: e) [H3O]: f) pH: M M M M M
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