Gooch and Peters — Titration of Oxalic Acid. 467 



Volume at beginning- of titeation = I40 cm3 . 

 Temperature = 20°-2Jf C. 



Ammonium HC1 . MnCl 2 . 

 oxalate. strongest 4H 2 0. 

 cm 3 . cm 3 . 

 25 5 0-5 



BaCl 2 . SrCl 2 . CaCl 2 . MgCl 2 . 

 grams, grams, grams, grams. 



KMn0. t Error. 



used. 



cm 3 . cm 3 . 

 26-05 0-00 



25 5 



25 5 ._ 



25 5 



25 5 



25 5 



2 



2 



2 



2 



27*45 +1-40 

 26-50 +0-45 

 26-53 +0-48 

 26-36 +0-35 

 26-13 +0-08 



25 5 0-5 

 25 5 0-5 

 25 5 0-5 

 25 5 0-5 



2 



2 



2 



2 



26*05 0-00 

 26-10 +0-05 

 26-10 +0-05 

 26-05 0-00 



25 10 1-0- 

 25 10 1-0 

 25 10 1-0 

 25 10 1-0 



2 



2 



2 ._ 



2 



26-10 +0-05 

 26-05 0-00 

 2606 +0-01 

 26-11 +0-06 



A.M. Jour. Sci. — Fourth Series, Vol. VII, No. 42.— June, 1899. 

 31 



