Question

write the net ionic equation for the precipitation reaction that occurs when aqueous solutions of potassium hydroxide and iron(iii) sulfate are combined. be sure to specify states such as (aq) or (s). if a box is not needed leave it blank.

Explanation:

Step1: Write the reactants dissociation

Aqueous iron(III) sulfate ($Fe_2(SO_4)_3(aq)$) dissociates into $2Fe^{3 + }(aq)+3SO_4^{2 - }(aq)$, and aqueous potassium hydroxide ($KOH(aq)$) dissociates into $K^+(aq)+OH^-(aq)$.

Step2: Determine the product

The iron(III) ions react with hydroxide ions to form insoluble iron(III) hydroxide $Fe(OH)_3(s)$. Potassium ions and sulfate ions remain in solution as spectator - ions and are not included in the net ionic equation.

Step3: Write the net ionic equation

The net ionic equation is $Fe^{3 + }(aq)+3OH^-(aq)
ightarrow Fe(OH)_3(s)$.

Answer:

$Fe^{3 + }(aq)+3OH^-(aq)
ightarrow Fe(OH)_3(s)$