[Science geek]

Ca you explain me the titration of sulfuricacid with potassium-permanganate according to the Zimmerman Reinhard's method and write the reaction

[Borek]

Are you sure you are not mistaking something? Reinhardt-Zimmerman solution is used for Fe²⁺ titration, not for sulfuric acid titration.

[Science geek]

The problem is:
For experimentation 100 cm3 of 96% sulfuric acid is taken,density of 1,84 g/cm3. The acid is dried until dry,and then siluted in a low percent solution of sulfuric acid and titrated accournding to zimmermann Reinhard theory with potassium-permanganate.What is the mass percentage of iron in the sample of that acid if 2,21 cm3 potassium-permanganate solution is used for the titration,concentration of c(KMnO4)=0,004 mol/dm3

I calculated that there is 0,00000884 mol of KMnO4 and 176,64g of H2SO4 (1,80245 mol) but i do not actually know how to calculate ω(Fe)=?
The result in the book is 0,00134%
Can you help me please?

[Dan]

Start with a balanced equation. Once you have determined the stoichiometry, the rest is basic algebra.

[Borek]

sulfuric acid is taken,density of 1,84 g/cm3. The acid is dried until dry,and then siluted in a low percent solution of sulfuric acid

Sulfuric acid is dried only to be diluted with sulfuric acid?

Can you post the entire problem?

Not that it will make Dan's advice obsolete - every titration is about basic stoichiometry.

[Science geek]

The sulfuric acid is dryed odnly to be diluted. @Borek I have already posted the entire problem.
@Dan I do not know how to write the equation. I tried several times