Phosphoric acid is used widely in fertilizers and is used in certain types of pop to...

 

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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) HPO4 (aq) + H3O+ (aq) HPO4 (aq) + H2O (1) PO43 (aq) + H3O+ (aq) a) [H3PO4] | Ka = 6.92 x 10-3 Ka = 6.17 x 10-8 Ka3 = 4.79 x 10-13 M b) [H2PO4]: c) [HPO4]: d) [PO ]: e) [H3O]: f) pH: M M M M 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) HPO4 (aq) + H3O+ (aq) HPO4 (aq) + H2O (1) PO43 (aq) + H3O+ (aq) a) [H3PO4] | Ka = 6.92 x 10-3 Ka = 6.17 x 10-8 Ka3 = 4.79 x 10-13 M b) [H2PO4]: c) [HPO4]: d) [PO ]: e) [H3O]: f) pH: M M M M

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To estimate the pH and concentrations of all species at equilibrium in a 0520 M solution of phosphoric acid H3PO4 we need to consider the dissociation ... View the full answer