Question #d12c9

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Question #d12c9

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Answer 1 · 2017-04-27T20:31:18

Conjugates are particles that differ by one $H^{+}$ $H^+$ ion. The acid has an "extra" that the base lacks.

Explanation:

So, in a) $N H_{4}^{+}$ $NH_4^+$ (acid) and $N H_{3}$ $NH_3$ (base) are conjugates. Same for $H C N$ $HCN$ (acid) and $C N^{-}$ $CN^-$ (base).

b) $H C O_{3}^{-}$ $HCO_3^-$ (acid) and $C O_{3}^{2 -}$ $CO_3^(2-)$ (base) are conjugates, as are HCl (acid) and $C l^{-}$ $Cl^-$ (base).

In the second question, for the substance to be an acid (only), it must have a $H^{+}$ $H^+$ it can donate to $H_{2} O$ $H_2O$ , but must not acquire a $H^{+}$ $H^+$ . This includes $H_{2} S O_{4}$ $H_2SO_4$ as the only chemical that is only an acid.

$C H_{3} C O O^{-}$ $CH_3COO^-$ and $S O_{4}^{2 -}$ $SO_4^(2-)$ are only bases (the H atoms bonded to the C do not ionize).

All the rest can serve as either acid or base.

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Question #d12c9

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