Question

When dilute aqueous solutions of lead (ii) nitrate and sodium chloride are mixed, a precipitate is observed. write a molecular, complete ioninc, and?

Answer 1

Answer : When two dilute aqueous solutions of Lead nitrate and Sodium chloride are mixed then the following reaction occurs :

$Pb(NO_{3} )_{2} + 2NaCl ---\ \textgreater \ PbCl_{2} + 2NaNO_{3}$

This is a simple double displacement reaction that takes place. And a insoluble solid precipitate is formed as the major product. Also rest other remains in the ionic forms in aqueous state.

The complete ionic equation of the reaction is given by 

$Pb ^{+2} _{(aq.)} + 2NO_{3} ^{-} _{(aq.)} + 2Na^{+} _{(aq.)} + 2Cl^{-} _{(aq.)} ----\ \textgreater$   $PbCl_{2} _{(s)} + 2Na ^{+} _{(aq.)} + 2 NO_{3} ^{-} _{(aq.)}$

And the net ionic reaction is given by :-
$Pb ^{+2} _{(aq.)} + 2 Cl^{-} _{(aq.)} ----\ \textgreater \ PbCl _{2} _{(s)}$