210 QUANTITATIVE ANALYSIS. 



then we must add to every 19.4 cc. 0.6 cc. of water. Twenty 

 cubic centimeters of this uranium solution will then corre- 

 spond to 0.1 g. P 2 5 . 



The determination of the phosphoric acid in the urine is 

 made exactly as described above in the titration and also 

 with 50 cc. The number of cubic centimeters of the uranium 

 solution used divided by 10 gives the amount of phosphoric 

 acid, P 2 5; in grams for one liter of urine. 



