Dichromate titrations - oxidation reduction titrations, Chemistry

Assignment Help:

Dichromate titrations - oxidation reduction titrations

These are titrations where, potassium dichromate is utilized as an oxidising agent in acidic medium. The medium is organized acidic by the make use of dilute sulphuric acid. The potential reaction is

K2Cr2O7 + 4h2SO4 → K2SO4 + Cr2 (SO4)3 + 4 H20 + 3[O]

OR Cr2 O2-7 + 14 H+ + 6e- → 2 CR3+ + 7 H2O

The solution of potassium dichromate can be directly employed for titrations. It is generally used for the estimation of ferrous salts and iodides. In the titration of K2Cr2O7 versus ferrous salt either an external indicator that is potassium ferricyanide or an internal indicator that is diphenyl amine can be used.


Related Discussions:- Dichromate titrations - oxidation reduction titrations

Intermediate compound formation theory, can anyone explain the intermediate...

can anyone explain the intermediate compound formation theory in detail .?

Chemical kinetics, determination of oder of reaction by integral method

determination of oder of reaction by integral method

Polymers, applications of polymers in electrical and electronics

applications of polymers in electrical and electronics

The maximum number of electrons & azimuthal quantum no., For azimuthal quan...

For azimuthal quantum number l= 3  , the maximum number of electrons will be: (1) 2        (2) 6        (3) 0        (4) 14 Ans:  14

Electrolysis process, working of electrolysis process? components of electr...

working of electrolysis process? components of electrolysis process? advantages and disadvantages of electrolysis process?

What are the favorable conditions for formation of anions?, There are two c...

There are two conditionfor foramtion of anions a)  High Electron affinity b) Small size Less charge of an atoms form anion more simply

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd