Question

A hittorf cell filtered with Ag/Agcl electrode is filled with Hcl solution that contain 0.3856×10–3gHcl/g water. A current of 2.00A is passed for exactly 3hours,the solution are withdraw,weight and analysed.the total weight of a cathode solution is 51.7436g,it contains 0.0267g of Hcl.the anode solution weight 52.0461g and contains 0.0133g of Hcl.what is the transference number of the H ion?

Answer 1

Answer on Question #78304 - Chemistry - Physical Chemistry

Question:

A hittorf cell filtered with Ag/AgCl electrode is filled with Hcl solution that contain $0.3856 \times 10^{-3} \mathrm{~gHcl/g}$ water. A current of 2.00A is passed for exactly 3 hours. The solution are withdraw, weight and analysed. The total weight of a cathode solution is 51.7436g, it contains 0.0267 g of Hcl. The anode solution weight 52.0461g and contains 0.0133g of Hcl. What is the transference number of the H ion?

Solution:

$\mathrm{m} = \mathrm{ItM} / \mathrm{Fz}$
$\mathrm{m} = 2^{*}180^{*}36.5 / 96500 = 0.13617\mathrm{g};$
$\mathrm{t + = \Delta ck / (\Delta ck + \Delta ca)}$
$\mathrm{t(H +)} = 5\mathrm{t(Cl - )};$
$\mathrm{t + = 5 / 6 = 0.83}$ .

Answer: 0.83.

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