1 2 3 1 2 3 1 2 3

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1

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5 i/s – current density, an important quantity in electrochemistry, U/l (here E) is

the intensity of the electric field.

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6 variant: common cation (then march towards anode) the method becomes

descending (shown is ascending)

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7 0.001 because v is in cm³ (and v is the volume between positions MB1 and

MB2)

Total charge q may be determined by any way (e.g. a product of current and time)

There are many ways of measuring the position of the border.

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8 Composition of catholyte and anolyte changes during the electrolysis. There

are two reasons: First – reactions on electrodes, second – migration (or movement of ions in the electric field).

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11 In some systems concentration of one substance can decrease and quite a

different substance can appear. This is true, when the system is asymmetric with respect to the electrode reaction (wne second reaction is NOT a simple inversion of the first).

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Originally, Faraday formulated two

laws, which are nowadays presented in

„two-in-one” fashion.

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Please, note that in this cell liquid junction is not needed!!!

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