Sr. No. Weight of potato pieces Volume of KMnO4 consumed  cm3 CBR Y cm3 Standard Deviation Normality of KMnO4
1 2 3
1 1.00 g 10.60 10.60 10.50 10.60 0.04795 0.094 N
2 0.500 g 10.70 10.50 10.70 10.70 0.04764 0.093 N
3 0.250 g 10.60 10.60 10.50 10.60 0.04795 0.094 N
4 0.100 g 10.60 10.60 10.50 10.60 0.04795 0.094 N
Table 2b: Burette Readings: Pilot Reading 10.00 to 11.00 cm3.