Given a metal phosphate, #M_3(PO_4)_2#, what salt would this metal from with sulfate ion?

1 Answer
Aug 3, 2017

Answer:

The corresponding metal sulfate would be #MSO_4#...........

Explanation:

Why?

We gots #M_3(PO_4)_2#; now phosphate anion is formally #PO_4^(3-)#, i.e. a salt of #"phosphoric acid"#, #H_3PO_4#. And in the given formula we have #2xxPO_4^(3-)#, a formal electronic charge of #-6#. Clearly, to form a neutral salt, the three metal ions must have a combined formal charge of #+6#, and given this we have #M^(2+)# ions.......

And thus the salt the metal forms with sulfate anion would be 1:1, i.e. #M^(2+)SO_4^(2-)#.