42 VELOCITY OF REACTIONS 



moments. With help of this regularity it is easy 

 to deduce the general law for the phenomenon. 

 It is given by the formula 



^^g e ^-—-x=Kqt, 



where A is the quantity of ammonia at the beginning 

 of the experiment, x the quantity of ammonia trans- 

 formed into ammonium acetate at the time /, K the 

 constant of the reaction and q the quantity of the 

 ester. The ^-values calculated by means of this 

 formula are tabulated in the third column and 

 agree very well with .r-obs. At the commencement, 

 before x has reached too high values, this equation 

 gives 



x— \/K . A . q . t, 



which is the rule of Schutz, according to which x 

 is proportional to the square root of At for constant 

 value of the quantity q of ethyl acetate or egg- 

 albumen. 



[Table 



