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- Permanganometry abstract "Permanganometry is one of the techniques used in quantitative analysis in Chemistry. It is a redox titration and involves the use of permanganates and is used to measure the amount of analyte present in unknown chemical samples.It involves two steps, namely the titration of the analyte with potassium permanganate solution and then the standardization of potassium permanganate solution with standard sodium oxalate solution. The titration involves volumetric manipulations to prepare the analyte solutions.Depending on how the titration is performed, the permanganate ion can be reduced to Mnx, where x is +2, +3, +4 and +6. Using permanganometry we can estimate the quantitative presence of Fe+2, Mn+2, Fe+2 and Mn+2 when they are both present in a mixture, C2O42-, NO2-, H2O2 etc.In the most cases permanganometry is performed in a very acidic solution in which the following reaction occurs:MnO4- + 8H+ + 5e- → Mn+2 + 4H2OThe standard potential of this electrochemical reaction is:Eo=+1.52 Vwhich shows that KMnO4 (in an acidic medium) is a very strong oxidizing agent. With this method we can oxidize: Fe+2 (EoFe+3/Fe+2=+0.77 V) Sn+2 (EoSn+4/Sn+2=+0.2 V)and evenCl- ( EoCl2/Cl-=+1.36 V) etc.In weak acidic medium MnO4- can not accept 5 electrons to form Mn+2, this time it accepts only 3 electrons and forms MnO2(s) by the following electrochemical reaction:MnO4- + 4H+ + 3e- → MnO2 + 2H2OThe standard potential is Eo=+1.69 V.For the reaction: MnO4- + 8 H+ + 5 e- = Mn2+ + 4 H2Othe standard reduction potential is Eo=+1.51 V.And if the solution has a concentration c(NaOH)>1 mol dm−3 the following reaction occurs:MnO4- + e- → MnO42- Eo=+0.56 V.".
- Permanganometry wikiPageID "20626185".
- Permanganometry wikiPageRevisionID "606664935".
- Permanganometry hasPhotoCollection Permanganometry.
- Permanganometry subject Category:Analytical_chemistry.
- Permanganometry subject Category:Titration.
- Permanganometry comment "Permanganometry is one of the techniques used in quantitative analysis in Chemistry. It is a redox titration and involves the use of permanganates and is used to measure the amount of analyte present in unknown chemical samples.It involves two steps, namely the titration of the analyte with potassium permanganate solution and then the standardization of potassium permanganate solution with standard sodium oxalate solution.".
- Permanganometry label "Permanganometria".
- Permanganometry label "Permanganometry".
- Permanganometry sameAs Permanganometri.
- Permanganometry sameAs Permanganometria.
- Permanganometry sameAs m.051yzkk.
- Permanganometry sameAs Q4271814.
- Permanganometry sameAs Q4271814.
- Permanganometry wasDerivedFrom Permanganometry?oldid=606664935.
- Permanganometry isPrimaryTopicOf Permanganometry.