41. Given the following ions, how many different compounds are possible. List them with the correct name and formula.

Fe3(PO4)2   Iron(II) Phosphate

Fe3(PO3)2  iron(II) Phosphite

Fe(PO4)   Iron(III) Phosphate

FePO3    (Iron (iii) phosphite.

Explanation:

The ions given are

Fe^3+

Fe^2+

PO4^3-

PO3^3-

The ionic compounds or electrically neutral compounds that can be formed from the cations and anions given are :

Fe^3+ + PO3^3-= Fe3(PO4)2 the ions are balanced. the compound formed is Iron(II) Phosphate

Fe^2++PO4^3-=  Fe3(PO3)2  is iron(II)Phosphite

The compound formed is balanced with the charges provided on the ions.

Fe^3+ + PO4^3-= Fe(PO4)   the charge on the anion and cation are equal.

THE COMPOUND FORMED IS Iron(III) Phosphate

Fe^3++ PO3^3= FePO3

Fe^3+ + PO^3-= FePO3   (Iron (iii) phosphite.

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