Asked by OLGA

what is the charge of a PHOSPITE ?
and how do i write it?

Answers

Answered by DrBob222
phosphate = PO<sub>4</sub><sup>-3</sup>

phosphite = PO<sub>3</</sub><sup>-3</sup>

Here is a good site for all of the polyatomic ions, including phosphite ion.
(Broken Link Removed)
Answered by DrBob222
phosphite should be PO<sub>3</sub><sup>-3</sup>
Answered by OLGA
okay then, what is calcium phospite?
Answered by DrBob222
Ca3(PO3)3 in my book. However, to be fair about it, I looked on the web AND in The Merck Index and found CaHPO3 and it was labeled calcium phosphite. Technically, however, that should be called calcium hydrogen phosphite
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