Question

23 select the correct answer. which statement correctly relates two substances in this chemical equation? nh₃ + h₂o ⇌ oh⁻ + nh₄⁺ a. h₂o is the conjugate base of oh⁻. b. h₂o is the conjugate acid of nh₃. c. nh₄⁺ is the conjugate acid of nh₃. d. nh₃ is the conjugate acid of nh₄⁺. e. oh⁻ is the conjugate base of nh₃.

Explanation:

In an acid - base conjugate pair, a conjugate acid is formed when a base accepts a proton ($H^+$), and a conjugate base is formed when an acid donates a proton. In the equation $NH_3 + H_2O
ightleftharpoons OH^-+NH_4^+$, $NH_3$ (a base) accepts a proton to form $NH_4^+$, so $NH_4^+$ is the conjugate acid of $NH_3$.

Answer:

C. $NH_4^+$ is the conjugate acid of $NH_3$.