1140 



TABLE 1. 



c • ■ mn S 7-28 gr. NasHPOj 2 aq. 

 0.75 gr. Soja in 100 c.c. j ^^^ gr. 



KH2PO4 



50 C.C. filtrate mixed with 100 c.c. water + | ^'^^ ^'^ kh FO^' ^ ^'^' 



pH = 1.2l 



Two 



50 



TABLE 8. 

 equal experiments, one on Sept. 18th, 1916, another with freshly 

 prepared solution on Sept. 19th, 1916. 

 - -_ c • • ,nrt S "7-28 gr. Na HPO4 2 aq. 

 0.75 gr. Soja in '00 c.c. j 2.32 g^. khW 

 c.c. filtrate mixed with 100 c.c. water + 9.6 gr. Na2HP04 2 aq. 

 pH = 1.52 



. \ Ice. NaOH ^N 

 minutes. 50 



'50 

 corrected 

 (mean). 



y 



0,0302/o5^j^ + 0,02j/ 



m = z k = 



log 



\-y 



0.0097 

 0.0111 

 0.0120 

 0.0141 

 0.0140 



