In the reaction $\mathrm { HCl } + \mathrm { H } _ { 2 } \mathrm { Of } \quad \mathrm { H } _ { 3 } \mathrm { O } ^ { + } + \mathrm { Cl } ^ { - }$ , the number of conjugate acid-base pairs is ____.

Question

Quizplus · Accepted Answer

Conjugate acid-base pairs are formed when an acid donates a proton (H+) and forms a conjugate base, or when a base accepts a proton and forms a conjugate acid. In this reaction, HCl is an acid that donates a proton to H2O, forming H3O+ (the conjugate acid) and Cl- (the conjugate base). Therefore, there are two conjugate acid-base pairs: HCl/Cl- and H2O/H3O+.

In the Reaction HCl+H2OfH3O++Cl−\mathrm { HCl } + \mathrm { H } _ { 2 } \mathrm { Of } \quad \mathrm { H } _ { 3 } \mathrm { O } ^ { + } + \mathrm { Cl } ^ { - }HCl+H2​OfH3​O++Cl−

In the Reaction $\mathrm { HCl } + \mathrm { H } _ { 2 } \mathrm { Of } \quad \mathrm { H } _ { 3 } \mathrm { O } ^ { + } + \mathrm { Cl } ^ { - }$