Why should a blank determination run parallel with the determination of the saponification value of the sample? 1). to eliminate possible errors from every source, such as those which would be introduced by the absorption of carbon dioxide by the alkali or by the alkalinity of the glass. 2) This allows the amount of reactive substance within the plain solvent to be determined and hence allows a determination of the error in future titration experiments using this solvent. 3) to ascertaining the effect due to associated factors such as impurities in the reagents. ) 1 and 2 only O 1 and 3 only ) 1,2and3 O 2 and 3 only From the following data, determine the saponification value of Band I. O 124.37 mg KOH/g of sample ) 142.73 mg KOH/g of sample O 124.73 mg KOH/g of sample O 142.37 mg KOH/g of sample