|MadSci Network: Chemistry|
This is an eletrolisis experiment. I have a cemistry book and it says that if the salt is consentrated (I interperted that as "super sacherated") the salt will be electrolized rather then the water, the products at the electodes: clorine and hydorgen (if the salt is "consentrated"). I am trying to produce oxegen and hydrogen. so I filled one container with 1 cup of water. then put 1 1/2 teaspoons of salt in the container. on the left I put the steel anode and on the right I put the cathode. then I connected an 18 volt dc trasformer to it. after a wile the anode had rust deposits in it and the cathode was bubbleing with hyrdogen. when I replaced the anode with pencil lead it bubbled too. Why can the carbon eletrode bubble oxegen while the steel electrode rusts? I know that iron and oxegen combine to make rust but I would think that at least some of the oxegen would bubble too. also the water got hot shortly. problaly cause the H3O+ ions where combineing with the OH- ions to produce water. the heat might have something to do with the production of rust. sorry for spelling errors! thanks, kyle
Re: why cant i get oxegen off of a steel eletrode?
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