IGCSE/GCSE/O & A Level/IB/University Student Forum
Qualification => Subject Doubts => GCE AS & A2 Level => Sciences => Topic started by: rackmeup on May 24, 2010, 07:01:08 am
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Guys, I got a problem when I am revising Chemistry.
I understand that diaphragm cells are for manufacture of Chlorine, but I have troubles understanding what is diaphragm used for. Some classmates told me that they were to stop Cl- from going to the cathode. But they are never supposed to go towards the cathode, aren't they? As they being anions.
Then what is the diaphragm for??? Many thanks!!! :) :) :) :) :)
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Your'e friends are rite. In doing this, it prevents, the formation of NaCl all over again.
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the cl is made at the anode. but it still remains in the soln, moving towards the top where it leaves. at the cathode the are OH molecules SINCE H2O will break into its constiuents H2 and OH. thus. with out the diaphram the cl and oh will mix forming NaHOCL which is bleach and thus contamination . so really the asbestos diaphram is to stop the mixing of OH AND CL. hope that helps
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Your'e friends are rite. In doing this, it prevents, the formation of NaCl all over again.
CHEERS!!!
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the cl is made at the anode. but it still remains in the soln, moving towards the top where it leaves. at the cathode the are OH molecules SINCE H2O will break into its constiuents H2 and OH. thus. with out the diaphram the cl and oh will mix forming NaHOCL which is bleach and thus contamination . so really the asbestos diaphram is to stop the mixing of OH AND CL. hope that helps
CHEERS!!! GD LUCK