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Write (i) the conjugate acid, (ii) the conjugate base, of H₂PO₄⁻. - Leaving Cert Chemistry - Question e - 2020

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Write (i) the conjugate acid, (ii) the conjugate base, of H₂PO₄⁻.

Worked Solution & Example Answer:Write (i) the conjugate acid, (ii) the conjugate base, of H₂PO₄⁻. - Leaving Cert Chemistry - Question e - 2020

Step 1

(i) the conjugate acid

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Answer

The conjugate acid of H₂PO₄⁻ is H₃PO₄. This is formed when H₂PO₄⁻ gains a proton (H⁺).

Step 2

(ii) the conjugate base

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Answer

The conjugate base of H₂PO₄⁻ is HPO₄²⁻. This is formed when H₂PO₄⁻ loses a proton (H⁺).

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