As Biology Coursework (temp)Watch
However I am unsure on how to actually measure the degree of the colour, ie exactly how much has been broken down. I know you can use a calirometer but i am not quite sure how this works.
I would be keen on hearing how other people are doing this experiment, and their ideas and problems. Any tips on calirometers or info on how they work muc appreciated. Thanks
Read off the readings, and plot a calibration curve.
I've done searches on the net for calirometers etc but have still not been abl eto understand this wavelenth business with it. If anyone can explain that further I would also be grateful.
-Fill cuvette with water-to about 0.5cm^3
-Add 3 drops of standard iodine
Use this as the blank, and press the "zero" button on the colorimeter so that all the readings are taken form the iodine solution, ie any change in colour form teh blank will be noted.
sorry i keep asking questions that to u must seem easy but ive never actually seen a colorimeter before in my life.
so how doe sthis calibration curve thing work? what are the axis?