Write the total ionic equation and net ionic equation for the following reaction. Fe(NO3)3(aq) +...
Question:
Write the total ionic equation and net ionic equation for the following reaction.
{eq}Fe(NO_3)_3(aq) + CaCO_3(s) \to {/eq}
Ionic and Net Ionic Equation:
An ionic equation is the reaction showing all the ions taking part in the reaction. In a net ionic equation, the ions that actually take part in the reaction are expressed. This is obtained by cancelling the spectator ions from the ionic equation.
Answer and Explanation: 1
The given reaction is as follows:
{eq}\rm Fe{\left( {N{O_3}} \right)_3}\;\left( {aq} \right) + CaC{O_3}\left( s \right) \to {/eq}
The product formed is ferrous carbonate and calcium nitrate. The complete reaction is represented as given below.
{eq}\rm Fe{\left( {N{O_3}} \right)_3}\;\left( {aq} \right) + CaC{O_3}\;\left( s \right) \to F{e_2}{\left( {C{O_3}} \right)_3}\;\left( s \right) + Ca{\left( {N{O_3}} \right)_2}\;\left( {aq} \right) {/eq}
The above reaction is unbalanced. The balanced reaction is given below.
{eq}\rm 2Fe{\left( {N{O_3}} \right)_3}\left( {aq} \right) + 3CaC{O_3}\;\left( s \right) \to F{e_2}{\left( {C{O_3}} \right)_3}\;\left( s \right) + 3Ca{\left( {N{O_3}} \right)_2}\left( {aq} \right) {/eq}
The aqueous species are soluble ions. These are dissociated into ions. The solid substance remains undissociated.
Thus, the total ionic equation is given below,
{eq}\rm 2F{e^{3 + }}\left( {aq} \right) + 6N{O_3}^ - \;\left( {aq} \right) + 3CaC{O_3}\;\left( s \right) \to F{e_2}{\left( {C{O_3}} \right)_3}\;\left( s \right) + 3C{a^{2 + }} \left( {aq} \right)+ 6N{O_3}^ - \;\left( {aq} \right) {/eq}
The net ionic equation is obtained by canceling the spectator ions. These are the ions that are present unchanged on both sides.
Thus, the net ionic equation is given below,
{eq}\rm 2F{e^{3 + }} + 3CaC{O_3}\;\left( s \right) \to F{e_2}{\left( {C{O_3}} \right)_3}\;\left( s \right) + 3C{a^{2 + }} {/eq}
Learn more about this topic:
from
Chapter 14 / Lesson 6The AP Chemistry exam includes chemical equation questions about chemical reactions. Learn the tricks involved to master the questions on different types of reactions, and practice them for the AP Chemistry exam.