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![[Post New]](/templates/default/images/icon_minipost_new.gif) 1 Mar 2008 23:38:41 IST
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guys.. i need help wid the representatin of half cells in electrochem.... wot r d diffrnt types of half cells?? can sum1 pls explain me how to undrstand the different representations of half cells lik metal|insoluble salt etc etc...... and to write the half cell reactions?? PLS RPLY!!!!
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"Many of the things you can count,dont count....
Many of the things you cant count,really do count...."-Albert Einstein
"The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them"-William Bragg
"An inexplicable fact is infinitely preferable to an incomprehensible mystery"-F. Soddy
RISHIPRATIM MAZUMDAR
NIT DURGAPUR
1ST YEAR,ELECTRONICS AND COMMUNICATIONS
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1 Mar 2008 23:55:41 IST
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Various type of half cells. Gas ion half cell: Pt(H2)/H+ , Pt(Cl2)/Cl- Metal metal ion half cell: Ag/Ag+(aq) Metal insoluable salt anion half cell: Ag,AgCl/Cl- (aq)
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2 Mar 2008 00:00:52 IST
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Calomel electrode( its imp) Hg,Hg2Cl2/Cl- (aq) Metal metal oxide hydroxide half cell Hg,HgO/OH- (aq) Oxidation reduction half cell Hg/HgSO4/SO42- (aq)
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2 Mar 2008 00:04:17 IST
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i m sorry its mercury mercury half cell oxidation reduction half cell Pt/Fe2+ ,Fe3+
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2 Mar 2008 00:05:58 IST
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Quinhydrone half cell Pt/quinhydrone/H+(aq)
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2 Mar 2008 00:15:59 IST
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okie dear don't worry lemme try. c for gas ion half cell reaction is 1/2 H2(g)--------------> H+(aq) + e- now u can c that hydrogen gas is geting converted into H+ ion by losing electron so the cell reaction w'll be Pt(H2)/H+(aq)
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