Question

Write the balanced net ionic equation for the reaction between ClO- and SO3^2-

Show work please

Answer 1

ClO^- reacts with SO₃^2- to form SO₄^2- and Cl^- following this equation-

ClO^- + SO₃^2-$\rightarrow$ Cl^- + SO₄^2-

^{Oxidation Reaction}

SO₃^2-  $\rightarrow$ SO₄^2-

At first we need to equate the numbers of oxygen atom by adding H⁺  and H₂O. Now in the LHS there is one oxygen less. So we have added one H₂O in LHS and two H⁺ in RHS

SO₃^2-  + H₂O $\rightarrow$ SO₄^2- + 2H⁺

Next step is charge balancing. For this we need to add two electrons in RHS

SO₃^2-  + H₂O $\rightarrow$ SO₄^2- + 2H⁺ + 2e ....(1)

Reduction Reaction

ClO^-  $\rightarrow$ Cl^-

At first we need to equate the numbers of oxygen atom by adding H⁺  and H₂O. Now in the RHS there is one oxygen less. So we have added one H₂O in RHS and two H⁺ in LHS

ClO^- + 2H⁺$\rightarrow$ Cl^- + H₂O

Next step is charge balancing. For this we need to add two electrons in LHS

ClO^- + 2H⁺ + 2e $\rightarrow$ Cl^- + H₂O ....(2)

(1) + (2)

ClO^- + SO₃^2-$\rightarrow$ Cl^- + SO₄^2-