yanyan Posted February 14, 2007 Share Posted February 14, 2007 i did an experiment on electrolysis on various substances. two substances were copper sulpahte which gave an ammeter reading of 0.87A and sodium chloride which gave an ammeter reading of 1.25A. i have a question which says.... suggest a reason why copper (II) sulphate and sodium chloride do not give the same ammeter readings. i would appreciate your help. thanks in advance Link to comment Share on other sites More sharing options...
woelen Posted February 14, 2007 Share Posted February 14, 2007 Are the concentrations of the solutions the same? Also, in copper sulfate the ions have two units of charge, which makes discharging the ions slower. The ions in copper sulfate (esp. the sulfate ion) also are larger, which makes them less mobile. Link to comment Share on other sites More sharing options...
yanyan Posted February 16, 2007 Author Share Posted February 16, 2007 i wish to apologise i have seen the reply of the cross pointing one first and didnt see the answer to my query, i cant get used to this forum yet, so i apologise. thanks for you help a lot Link to comment Share on other sites More sharing options...
woelen Posted February 16, 2007 Share Posted February 16, 2007 Apologies accepted . Link to comment Share on other sites More sharing options...
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