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Jack H.

asked • 28d

Net Ionic equations

a. Write a net ionic equation for the reaction that occurs when aqueous solutions of hypochlorous acid and barium hydroxide are combined.

b. Write a net ionic equation for the overall reaction that occurs when aqueous solutions of phosphoric acid and potassium hydroxide are combined. Assume excess base.

1 Expert Answer

By:

J.R. S.

tutor
I'd disagree with the second answer. I believe it would be ... 3H+(aq) + 3OH-(aq) ==> 3H2O(l) if, as you say, base is in excess.
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27d

Ken H.

tutor
If phosphoric acid was a strong acid that would be correct. However, phosphoric acid is weak and therefore is not shown as dissociating as it only partially dissociates. The same rule as keeps HClO together on the first reaction. The base being in excess only means that it reacts with each H on the acid. In comparison, if it had stated equimolar or a 2x amount of base, then you would get H2PO4-1 or HPO4-2, respectfully as a product.
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27d

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