Question

The weak acid phosphoric acid has three acidic protons, highlighted in red here: H3PO4. As a weak acid, some of the acid will remain in molecular form when dissolved in water. Write the net ionic equation that depicts the dissociation of the first proton including charges for any ions produced.

Answer 1

Step-by-step explanation:

Dissociation means to break down , When a weak acid dissociates it do not undergo complete dissociation. So, when phosphoric acid dissociates it dissociates into hydrogen ion and dihydrogen phosphate ion.

The net ionic equation that depicts the dissociation of frost proton from phosphoric acid is given as:

`H_3PO_4\rightarrow H^++H_2PO_4^(-)`

Answer 2

The equation image for dissociation of the first proton in phosphoric acid is attached.

Step-by-step explanation:

When the pH rises by adding a base to an acid, the release of H + is generated. In the case of phosphoric acid, the first proton is the most easily released to be in solution. This fact can be bought from the pka since the pka of the first H + is the smallest of the three: 2.2

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