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March 27, 2015

Homework Help: Chemistry

Posted by Paula on Sunday, March 10, 2013 at 2:47pm.

Phosphoric acid, H3PO4(aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH, and the concentrations of all species in a 0.300 M phosphoric acid solution.
kPa1: 2.16
kPa2: 7.21
kPa3:12.32

[H3PO4] = ?
[H2PO4-] = ?
[HPO42-] = ?
[PO43-] = ?
[H+] = ?
[OH-] = ?
pH =?

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