Mass of unknown sample used in 250 ml. solution      g.
Volume of unknown solution used      ml.
Normality of Std. KMnO₄ used      N

Trial #1 :

Enter initial buret reading     ml.
Enter final buret reading       ml.

Trial #2 :

Enter initial buret reading     ml.
Enter final buret reading       ml.

Trial #3 :

Enter initial buret reading     ml.
Enter final buret reading       ml.

Trial #4 :

Enter initial buret reading     ml.
Enter final buret reading       ml.

Click to calculate the percent iron for each trial and the average percent iron.

Percent Fe for   

Trial #1

%        

Trial #2

%        

Trial #3

%        

Trial #4

%        

Average percent    % Fe