Unknown B Test Lab Report

In this lab, we tested 8 known ingredients to find what ingredients was in our unknown A and unknown B medications. We first tested the water solubility of our knowns and unknowns. We found that of the knowns, cornstarch and acetaminophen were the only ones not water soluble. The unknowns were also not water soluble. Th next test was the pH test. The unknowns were all basic except for the acetylsalicylic acid which was an acid and pseudoephedrine hydrochloride which was a neutral pH when tested. We tested our unknowns and found that both had a basic pH when tested. When we tested the ingredients for acetone solubility we found that most of the ingredients were acetone soluble except for acetaminophen, cornstarch, and sugar. For unknown A we

We identified unknown A as acetaminophen. This is because unknown A had all the same tested properties as acetaminophen when we performed our tests. For unknown B we found it to be acetaminophen and caffeine. This is because like unknown A, unknown B properties were the same as acetaminophen, but unknown B was acetone soluble. Unknown B has similar properties to caffeine because it was acetone soluble and because caffeine was the only basic pH tested to change color during the FeCl3 test. We were able to eliminate certain ingredients like chlorpheniramine because this ingredient was the only neutral and the properties were not similar to the unknowns. The other team identified that the unknowns included all the ingredients except for the acetylsalicylic acid. They came up with their conclusions based off during the starch test both unknowns contained starch. They had different results than our team during the acetone solubility test. Team 2 found that both unknowns were acetone soluble, but our team found only unknown B was acetone soluble. The actual ingredients in unknown A was acetaminophen and cornstarch. The actual ingredients in unknown B was acetaminophen, acetylsalicylic acid, caffeine, and