precipitation titration: preparation and standardization of silver nitrate and potassium thiocyanate solution and determination of chloride in an unknown sample.
We used Fajnas and Mohr methods and got the average [Ag+]=0.106665 mol/L
after which we find the mCl-= 0.06247g
the [SCN-]= 0.10602 mol/L
then we used Volhard method to determine the %Cl in the unknown sample which was equal to 52.74%
Complexation Titration: preaparation and standadization of EDTA solution, & determination of total Hardness of water.
1st of all, we calculated the average concetration of EDTA= 9.2x10-3 then we found the [CaCO3]=0.001160701 mol/L, and we got the its mass to be equal to ~ 11.62 mg
Redox titration: preparation and standadizationv of a potassium permaganate solution and determination of the percentage of Oxalate in an unkown sample.
[Mno4-]=0.018M, while the oxalte; [C2O42-]= 0.0179M
then we get the %C2O42-=48.513% with an error of + or - 4!