Answer to Question #127848 in Physical Chemistry for Likhita

Question

Mobility of H+ ions (in aques medium) is highest:
A).Of the small size of H+
B).Of highest hydration enthalpy of H+
C).It exhibits a grothus type of conduction
D).Hydrogen is a lightest element

Answer 1

Abnormal mobility of hydroxyl and hydronium ions has been noted long ago. It is the hydronium ions, not the proton, since the proton (H + ion) sits on the lone pair of the oxygen atom located in the water molecule and forms the hydronium ion H3O +. As a result of this, the phenomenon of Grottus' appears, that is, the relay effect of the transfer of a proton from one water molecule to another, and, due to the fact that the proton is small in size, it travels only small distances between water molecules, so the answer to the question posed will be the following options: А, С.