Can someone please answer this

Question

Write the balanced chemical equation for the reaction between phosphorous acid and sodium hydroxide.

Start by writing the proper names of the products below.

Phosphorous acid + Sodium hydroxide ________→

 Next, write the balanced equation with the correct chemical formulas, including coefficients. Put all the reactants in the answer box on the left, and the products on the right. ________→_________

Finally, write the net ionic equation for this reaction below.

________ →________

Answer 1

Phosphorous acid = H₃PO₃

Sodium hydroxide = NaOH

H₃PO₃(aq) + 3NaOH(aq) ==> Na₃PO₃(aq) + 3H₂O(l) ... balanced equation

3H⁺(aq) + 3OH^-(aq) ==> 3H₂O(l) ... net ionic equation

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Edited response:

We should actually consider H₃PO₃ as a di-protic acid, not a tri-protic acid (dibasic, not tribasic). Thus..

H₃PO₃ + 2 NaOH ==> Na₂HPO₃ + 2H₂O ... balanced equation

2H⁺(aq) + 2OH^-(aq) + HPO3^2-(aq) ==> 2H2O(l) + HPO₃^2-(aq) ... net ionic equation

The sequential reactions are;

H₃PO₃ + NaOH ==> NaH₂PO₃ + H₂O

NaH₂PO₃ + NaOH ==> Na₂HPO₃ + H₂O