Introduction to Acids and Bases

AP Chemistry· difficulty 2/5

The table lists several Bronsted-Lowry acids and their conjugate bases.

Acid Conjugate base HCl Cl- H2SO4 HSO4- NH4+ NH3 HCN CN-

What is the conjugate base of NH4+?

  • A

    N3-

  • B

    NH2-

  • C

    NH3

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  • D

    OH-

Explanation

A conjugate base is what remains after the acid donates one H+. NH4+ - H+ = NH3.

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