Asked by Michelle
Write an equation that represents how dihydrogen phosphate ion (H2PO4-) behaves as an Arrhenius acid. ( Be sure to include the correct charges for ions.)
Answers
Answered by
DrBob222
An Arrhenius acid is one that releases(provides) H^+ when placed in solution.
H2PO4^- ==> H^+ + HPO4^2-
I see some sites where the definition has been modernized to include H2O like this
H2PO4^- + H2O ==> H3O^+ HPO4^2-
however then one must explain that the hydronium ion actually is the H^+ (really the other way around); I don't think Arrhenius knew anything about the hydronium ion.
H2PO4^- ==> H^+ + HPO4^2-
I see some sites where the definition has been modernized to include H2O like this
H2PO4^- + H2O ==> H3O^+ HPO4^2-
however then one must explain that the hydronium ion actually is the H^+ (really the other way around); I don't think Arrhenius knew anything about the hydronium ion.
Answered by
Michelle
The second one you had described turned out to be the answer.
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