The equilibrium constant, K1, for the reaction H3PO4(aq) \(\rightleftharpoons\) H+(aq) + H2PO4-(aq) is 7.08 x 10-3.
The equilibrium constant, K2, for the reaction H2PO4-(aq) \(\rightleftharpoons\) H+(aq) + HPO42-(aq) is 6.31 x 10-8.
a. Write the net equation for these two reactions.
b. Write the expression for the equilibrium constant, K3, for the net equation.
K3 =
c. Calculate the value of K3. Show your work. Round your answer to 2 decimal places.
K3 =