Anonymous asked in Science & MathematicsChemistry · 6 months ago

Write two Bronsted-Lowry reaction equations illustrating the fact that the dihydrogen phosphate ion is amphiprotic. In both equations, ?

In both equations, products should be favoured. ?

1 Answer

  • 6 months ago
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    Dihydrogen phosphate ....

    Amphiprotic == substance which can both donate and accept a proton. (A term used in the Bronsted-Lowry theory of acids and bases.)

    H+ + H2PO4^-(aq) <==> H3PO4(aq) ..... accept a proton ... acts as BL base

    H2PO4^-(aq) <==> H+ HPO4^2-(aq) ..... donate a proton ... acts as BL acid

    Don't confuse amphiprotic with amphoteric. The latter refers to a substance which can behave as either an acid or a base depending on what it is reacting with.

    All amphiprotic substances are amphoteric, but not all amphoteric substances are amphiprotic.

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