What Is the Equilibrium Concentration of HPO₄^2- in a 0 $\times$

question 66

Multiple Choice

What is the equilibrium concentration of HPO₄^2- in a 0.528 M solution of H₃PO₄(aq) ? (K_a1 = 7.5 $\times$ 10^-3,K_a2 = 6.2 $\times$ 10^-8,K_a3 = 4.8 $\times$ 10^-13)

• A)1.8 \(\times\) 10^-4 M
• B)5.9 \(\times\)10^-2 M
• C)4.8 \(\times\)10^-13 M
• D)6.2 \(\times\) 10^-8 M
• E)5.0 \(\times\) 10^-7 M

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