The rate of disappearance of HCl was measured for the following reaction:
CH3OH(aq) + HCl(aq) yields CH3Cl(aq) + H2O(l)
The following data were collected:
Time (min) [HCl] (M)
0.0 1.85
54.0 1.58
107.0 1.36
215.0 1.02
430.0 0.580
a) Calculate the average rate of reaction (M s-1) for the time interval of 54.0 min to 215.0 min.
b) Calculate the instantaneous rate of reaction at 100.0 min.