The mobilities of H + and Cl at 25C in water are 3.623 10 7
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The mobilities of H+ and Cl− at 25°C in water are 3.623 × 10−7 m2 s−1 V−1 and 7.91 × 10−8 m2 s−1 V−1, respectively. What proportion of the current is carried by the protons in 10−3 m HCl(aq)? What fraction do they carry when the NaCl is added to the acid so that the solution is 1.0 mol dm−3 in the salt? Note how concentration as well as mobility governs the transport of current.
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