Label the acid, the base, the conjugate base and the conjugate acid in each of the following reactions.
(a) HCOOH + $N H_{3}$ $⇌$ $HCO O^{-}$ + $N H_{4}^{+}$
(b) $H_{2} O$ + ( $C H_{3})_{2} NH$ $⇌$ $O H^{-}$ + ( $C H_{3})_{2} N H_{2}^{+}$

Question

Label the acid, the base, the conjugate base and the conjugate acid in each of the following reactions.

(a) HCOOH + $N H_{3}$ $⇌$ $HCO O^{-}$ + $N H_{4}^{+}$

(b) $H_{2} O$ + ( $C H_{3})_{2} NH$ $⇌$ $O H^{-}$ + ( $C H_{3})_{2} N H_{2}^{+}$

TestHub · Accepted Answer

The acid is the proton donor on the left side and the base is the proton acceptor. Removing H + from the acid gives the conjugate base; adding H + to the base gives the conjugate acid. In (a) formic acid donates a proton to ammonia, so HCO O − is the conjugate base and N H 4 + ​ the conjugate acid. In (b) water donates a proton to dimethylamine, giving O H − and ( C H 3 ​ ) 2 ​ N H 2 + ​ .

Chemistry - GOC Question with Solution | TestHub

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