Isaac Physcis
In an experiment, a current of 3.5Ais being passed through a copper sulphate solution in a 10cm cubical container, with the electrical terminals being opposite faces. This contains equal numbers of Cu2+ and SO2−4 ions which have respectively +2 and −2 electron charge units. Assuming that the two ions have equal speed in the solution, and that there are 6.0×1026 of each per cubic metre of the solution, work out their mean speed to 2 significant figures.
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