Question

Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of h2so4 and koh are mixed. give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of h2so4 and koh are mixed. 2 k+(aq) + so42-(aq) → k2so4(s) h+(aq) + oh-(aq) → h2o(l) h22+(aq) + oh-(aq) → h2(oh)2(l) h+(aq) + oh-(aq) + 2 k+(aq) + so42-(aq) → h2o(l) + k2so4(s) no reaction occurs.

Answer 1

A chemical reaction that lists only those species participating in the reaction are said to be an net ionic equation.

The general reaction between aqeous solutions of $H_2SO_4$ and $KOH$ is:

$H_2SO_4(aq) + KOH(aq)\rightarrow K_2SO_4(aq)+H_2O(l)$

The balanced equation is:

$H_2SO_4(aq) + 2KOH(aq)\rightarrow K_2SO_4(aq)+2H_2O(l)$

The ionic equation is:

$2H^{+}(aq)+SO_{4}^{2-}(aq)+2K^{+}(aq)+2OH^{-}(aq)\rightarrow 2K^{+}(aq)+SO_{4}^{2-}(aq)+2H_2O(l)$

On cancelling the common ions from both the sides we get:

$2H^{+}(aq)+2OH^{-}(aq)\rightarrow 2H_2O(l)$

Dividing the above reaction by 2:

$H^{+}(aq)+OH^{-}(aq)\rightarrow H_2O(l)$

Hence the net ionic equation that occurs between aqueous solutions of $H_2SO_4$ and $KOH$ is:

$H^{+}(aq)+OH^{-}(aq)\rightarrow H_2O(l)$