Question

= Objective Knowledge Check Question 15 Write the empirical formula for at least four ionic compounds that could be formed from the following ions: Pb**, so-NH, IO.

Answer 1

Ques .Write cation and anion . Combine cation and anion to produce neutral species. If the charges is not equal, charge of cation become subscript of anion and charge one anion become subscript of cation Subscript for cation and anion all the smallest whole number ratio. (i) Pb4+ (in) NHyt soy 2- soy?- (i) Pb4+ TO (iv) Nhyt IO ý four combinations are possible 6 Pb4+ sor + 4 -2 Charge (Pb) (Souly Pb₂(Sou)y Both subscript Reduce to the lowest ratio Divided by 2. giving the correct ; emperical formula. O Emperical formula : Pb(Sou), РЬЧ, То, +4 ~- Pb4+ (103) Emperical formula : Pb(103)

( Nhyt Sou? +1 -2 charges (NH4) Sout- Emberical formula : (NH4)2SO4. (iv), NHut 103 +1 -1 Charges are same Empirical formula : NHy 103