During a lab experiment, we were to determine the relative level of saturation by adding, drop by drop, a solution of bromine in cyclohexane to oil and a fat, individually. However, the color that is supposed to be retained due to unreacted bromine did not persist as it should have. It took a considerable amount of drops (around 300 or more) before we had to skip that portion of the experiment.
Considering that the oil and fat we used were both commercial grade (I do not remember the brands), how would I predict (mathematically?) the number of drops or volume of bromocyclohexane should have been needed?