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 



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 g the quantity of the 

 ester. The A'-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 = x/K. A.^.A 



which is the rule of SCHUTZ, according to which x 

 is proportional to the square root of A/ for constant 

 value of the quantity q of ethyl acetate or egg- 

 albumen. 



