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 0.350 M phosphoric acid solution. pKa1= 2.16 pKa2= 7.21 pKa3= 12.32 1. [H3PO4] 2. [H2PO4-] 3. [HPO42-] 4. [H+] 5. [OH-] 6. pH
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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 0.350 M phosphoric acid solution.
pKa1= 2.16 pKa2= 7.21 pKa3= 12.32
1. [H3PO4]
2. [H2PO4-]
3. [HPO42-]
4. [H+]
5. [OH-]
6. pH
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