Solved Examples on Net Ionic Formula

Example 1: Determine the net Ionic equation of a given chemical equation.

AgNO₃ + KCl  → AgCl  + KNO₃

Solution:

Ionic Equation: 

Ag⁺ + NO₃¯ + K⁺ + Cl¯ → AgCl + K⁺ + NO₃¯

Simplified net ionic equation is,

Ag⁺ + Cl¯ → AgCl 

Example 2: Determine the net Ionic equation of a given chemical equation.

SrBr₂ + K₂SO₄ → SrSO₄ + 2 KBr 

Solution:

Ionic Equation:

 Sr²⁺ + 2 Br¯ + 2 K⁺ + SO₄^2- → SrSO₄ + 2 K⁺ + 2 Br¯ 

Simplified net ionic equation is,

Sr²⁺ + SO₄^2- → SrSO₄ 

Example 3: Determine the net Ionic equation of a given chemical equation.

Mg(NO₃)₂ + Na₂CO₃ → MgCO₃ + 2 NaNO₃ 

Solution:

Ionic Equation:

Mg²⁺ + 2 NO₃¯ + 2 Na⁺+ CO₃^2- → MgCO₃ + 2 Na⁺ + 2 NO₃¯ 

Simplified net ionic equation is,

Mg²⁺ + CO₃^2- → MgCO₃ 

Example 4: Determine the net Ionic equation of a given chemical equation.

MnCl₂ + (NH₄)₂CO₃ → MnCO₃ + 2 NH₄Cl 

Solution:

Ionic Equation:

Mn²⁺ + 2 Cl¯ + 2 NH⁺+ CO₃^2- → MnCO₃ + 2 NH₄⁺ + 2 Cl¯ 

Simplified net ionic equation is,

Mn²⁺ + CO₃^2- → MnCO₃

Example 5: Determine the net Ionic equation of a given chemical equation.

K₃PO₄ + Al(NO₃)₃ → AlPO₄ + 3 KNO₃ 

Solution:

Ionic Equation:

3 K⁺ + PO₄^3- + Al³⁺ + 3 NO₃¯ → AlPO₄ + 3 K⁺ + 3 NO^3¯ 

Simplified net ionic equation is,

Al³⁺ + PO₄^3- → AlPO₄ 

Chemical equation that only displays the components that are involved directly in the chemical reaction is known as the Net Ionic Formula or Net Ionic Equation.

Net ionic equation provides information about the ions present in an aqueous solution. In polar solvents like water, salts dissolve and then are present as cations and anions. The chemical species that change chemically are identified by the net ionic equation. The ions that show up on both sides of the equation are stable and are therefore referred to be spectator ions. There have been many equations encountered, the majority of which are condensed equations with all reactants and products denoted as electrically neutral molecules and compounds.