IS there a way to determine the starch concentration in a solution using simple apparatus?
Yes, there is a way to determine the starch concentration in a solution (or, probably more usually in a suspension) but if you want to do it you will need to carry out a few experiments to perfect your method. Iodine solution, usually available in any school lab will turn starch a deep shade of blue. If you were to use iodine solution and drop it into samples containing different amounts of starch the more concentrated samples containing samples would turn a darker blue than the more dilute samples. The differences in blueness could be detected using a simple photometer (usually found in schools).To be able to test an unknown sample you would need to construct your own “calibration curve”. A suggestion of how to start of is as follows: 1.Make up a batch of iodine solution so that you can use the same batch for all your tests. 2.Make up at least 10 dilutions of a concentrated starch suspension. Make this suspension by using a carefully weighed out amount of starch(you will probably need
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