Question

Given the following acid dissociation constants,
Ka (H3PO4) = 7.5 10-3
Ka (NH4+) = 5.6 10-10
determine the equilibrium constant for the reaction below at 25 C.
H3PO4(aq) + NH3(aq) NH4+(aq) + H2PO4-(aq)
A.4.2 10-12
B.7.5 10-8
C.4.2 102
D.1.3 107
E.2.4 1011

Answer

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