Question

Calculate the concentrations of the molecular and ionic species and the pH in aqueous solution that...

Calculate the concentrations of the molecular and ionic species and the pH in aqueous solution that has a formal composition of 0.2350 M KH2PO4 + 0.4300 M K2HPO4. ((Ka1 = 6.2*10^-8)

What is the pH of this solution?

What is the concentration of the molecular species H3PO4?

What is the concentration of K+ in molarity?

1.09

What is the concentration of OH−?

What is the concentration of PO4−3 in molarity? (use Ka3=4.2x10-13)

What is [HPO4−2]?

0.430

What is [H2PO4−]?

0.2350

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