Vitamin C lab

So first off i have to apologize to all the groups because of the fact that Gannon ruined everything. He was only supposed to use one tablet of vitamin c concentration but he used two. Besides that the lab seemed to go off without a hitch. We started the lab by getting samples of 5 different liquids with varying vitamin C concentration. Putting 20 drops of each liquid in a test tube with starch readied them for testing. The testing was conducted by dropping iodine concentration into the test tubes and counting the amount of drops it took to turn fully blue. Then doing some plug and chug equations we were able to find the vitamin c concentration.