Consider an experiment in which starch is dissolved in a liter of water. Some of the solution is placed into a securely tied dialysis bag. The dialysis bag is placed into a beaker containing distilled water and iodine for 30 minutes. What are the correct answers for the questions below? (Note: Iodine reacts with starch to create a black/purple color.)
What would happen to the color of the solution in the bag?
a. The solution in the bag would turn purple as the iodine reacts with the starch.
b. The solution in the bag would grow lighter as the starch leaves the bag and enters distilled
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i would say A, not %100 though
Dialysis bags are one way filters from inside to out for just about everything, understanding that you should be able to get your answer.
The iodine won't be able to go into the dialysis bag, so the starch and iodine definitely can't react within the bag. Knowing that, it has to be the option where the starch diffuses out of the bag into the iodine solution.