Write examples of weak acids and weak bases and give ionic equilibrium in its aqueous solution.

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$(A)$ Weak Acids Ionic Equilibriums
$(1)$ Acetic acid $\left(\mathrm{CH}_{3} \mathrm{COOH}\right)$ $\mathrm{CH}_{3} \mathrm{COOH}_{(\text {aq })}+\mathrm{H}_{2} \mathrm{O}_{(l)} \square \mathrm{H}_{3} \mathrm{O}_{\text {(aq) }}^{+}+\mathrm{CH}_{3} \mathrm{COO}_{\text {(aq) }}^{-}$
$(2)$ Benzoic acid $\left(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{COOH}\right)$ $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{COOH}_{(\text {aq })}+\mathrm{H}_{2} \mathrm{O}_{(l)} \square \mathrm{H}_{3} \mathrm{O}_{(\text {aq })}^{+}+\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{COO}_{(\text {aq })}^{-}$
$(3)$ Hydrocyanic acid $(HCN)$ $\mathrm{HCN}_{(\text {aq })}+\mathrm{H}_{2} \mathrm{O}_{(l)} \square \mathrm{H}_{3} \mathrm{O}_{\text {(aq) }}^{+}+\mathrm{CN}_{(\text {aq })}^{-}$
$(4)$ Formic acid ($HCOOH$) $\mathrm{HCOOH}_{(\text {aq })}+\mathrm{H}_{2} \mathrm{O}_{(l)} \square \mathrm{H}_{3} \mathrm{O}_{\text {(aq) }}^{+}+\mathrm{HCOO}_{\text {(aq) }}^{-}$
$(5)$ Hypochlorous acid $(HOCl)$ $\mathrm{HOCl}_{\text {(aq) }}+\mathrm{H}_{2} \mathrm{O}_{(l)} \square \mathrm{OCl}_{\text {(aq) }}^{-}+\mathrm{H}_{3} \mathrm{O}_{\text {(aq) }}^{+} \text {etc. }$

 

$(B)$ Weak Bases Ionic Equilibriums
$(1)$ Ammonia $\left(\mathrm{NH}_{3}\right)$ $\mathrm{NH}_{3(\mathrm{aq})}+\mathrm{H}_{2} \mathrm{O}_{(l)} \square \mathrm{NH}_{4(\mathrm{aq})}^{+}+\mathrm{OH}_{(\mathrm{aq})^{-}}^{-}$
$(2)$ Aniline $\left(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2}\right)$ $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2(\mathrm{aq})}+\mathrm{H}_{2} \mathrm{O}_{(l)} \square \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{3(\mathrm{aq})}^{+}+\mathrm{OH}_{(\mathrm{aq})}^{-}$
$(3)$ Hydrazine $\left(\mathrm{NH}_{2} \mathrm{NH}_{2}\right)$ $\mathrm{NH}_{2} \mathrm{NH}_{2(\mathrm{aq})}+\mathrm{H}_{2} \mathrm{O}_{(l)} \square \mathrm{NH}_{2} \mathrm{NH}_{3(\mathrm{aq})}^{+}+\mathrm{OH}_{(\mathrm{aq})}$
$(4)$ Methyl Amine $\left(\mathrm{CH}_{3} \mathrm{NH}_{2}\right)$ $\mathrm{CH}_{3} \mathrm{NH}_{2(\mathrm{aq})}+\mathrm{H}_{2} \mathrm{O}_{(l)} \square \mathrm{CH}_{3} \mathrm{NH}_{3(\mathrm{aq})}^{+}+\mathrm{OH}_{(\mathrm{aq})}^{-}$
$(5)$ Dimethyl Amine $\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}$ $\left.\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}_{(\mathrm{aq})}+\mathrm{H}_{2} \mathrm{O}_{(l)} \square\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}_{3(\mathrm{aq})}^{+}+\mathrm{OH}_{(\mathrm{aq})}^{-}\right)$etc.

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