Question

A student has carried out a moving boundary experiment using K₂SO₄ as an electrolyte.

The data obtained was tabulated in the following Table.

Cation velocity 11.43 mms-1

Cross sectional area of tube 28.56 mm²

Transference number of cation 0.593

Anion concentration 0.025 mol dm^-3

Calculate the current flow for the boundary moves as far as 45 mm.

Answer 1

$Q = \frac{96500 \times 0.025\times4.5\times2856}{0.593}$

Q =5228.5C