Friday, January 15, 2016
Murder Molarity Lab
This was a pretty rad lab. Our good friend Mrs. Scarlet was murdered and as a forensic scientist it was our job to figure out who was the killer. First, we had to figure out what the murder weapon was by undergoing a reaction between the unknown substance that killed Mrs. Scarlett and Na2CO3. The end result of this reaction clears up the mystery of the murder weapon. If the reaction formed a precipitate then we knew that the murder weapon was AgNO3, but if it did not form a precipitate then the murder weapon is KI. The reaction formed .094g of precipitate so we know he murder weapon was AgNO3. To find out who the murderer was we needed to find the molarity of the substance which turned out to be .227 which told us the murderer was professor plum.
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It was cool to learn a little about forensic science, and to find out how it would be addressed if I were publicly murdered. I thought this lab was really interesting, and it helped me to better undersand the concept of molarity, and how it can be applied to real life situations.
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