Posted by Swaastikaa on Sunday, March 25, 2012 at 6:57am.
Acids give away H^+. Bases add them. Look for the one that give them away and accepts them.
H2PO4^- on the left and HPO4^2- on the right must be one pair. H2PO4^-has given one H away to something.
HAsO4^2- and H2AsO4^- must be the other pair.
So H2PO4^- has given a H to HAsO4^2-. In the process, H2PO4^- becomes HPO4^2- and HAsO4^2- becomes H2AsO4^-. It isn't that complicated. Just follow the H. It's easy to see which is missing and which has been added.
So,the answers are HAsO42- & HPO4- rite?
Because from what I found,HAs04 2- is weakly basic and HPO4 2- is a conjugate base. So the bases are these two species above. M I rite?
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