What is the definition of a continuous change method and how is it carried out?
Jenkin answers I wonder if you are thinking of what is sometimes called the method of continuous variation? This is a technique sometimes used to find the reacting proportions of two substances in solution. The idea is to set up a series of mixtures of the two solutions covering the full range from 100% of one to 100% of the other. Like this: Volume of A (cm3) 10 9 8 7 6 5 4 3 2 1 0 Volume of B (cm3) 0 1 2 3 4 5 6 7 8 9 10 So the total volume of each mixture is always the same but the proportions of A and B vary. Depending on the reaction being investigated, the mixtures might then be put into a colorimeter to find the one with the greatest absorbance at a certain light frequency, and hence the reacting proportions of A and B. Risk assessment Before attempting any practical work based on the advice and suggestions on this website, you must do the following. Identify any hazards, assess the risks from these hazards, and then decide appropriate control measures to reduce the risks. You m
