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

Determine the ionisation potential of a hydrogen atom, The ionisation poten...

The ionisation potential of a hydrogen atom is -13.6 eV. What will be the energy of the atom corresponding to n= 2 . (1) -3.4 eV           (2)-6.8 eV      (3) -1.7 eV

Aromatic compound, Aromatic compounds benzoic and non benzoind

Aromatic compounds benzoic and non benzoind

S-block elements, #question.reactions of s-block element?.

#question.reactions of s-block element?.

Qualitative Analysis of Cations, We are asked to design a qualitative analy...

We are asked to design a qualitative analysis scheme that can be used to determine which cations are present in a solution containing only four of the following cations: Pb2+, Ag+,

Can you describe cream foams, Q. Can you describe Cream Foams? Cream, w...

Q. Can you describe Cream Foams? Cream, with a fat content of at least 30 per cent, can be beaten to form foam. However, it is observed that a cream with 36 per cent fat can be

What is standard enthalpy of formation, Q. What is Standard Enthalpy of For...

Q. What is Standard Enthalpy of Formation? Ans. It is really difficult to measure the total energy content or absolute entropy of a substance. In order to quantify entropy

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