murder investigation lab

The purpose of the murder investigation lab was to use molarity and stoichiometry to determine the unknown substance.Then using the information from the lab to determine the murderer.

Here were the steps we took to perform the lab

Procedure:

1. weigh piece piece of filter paper
2. fold the filter paper so that it can fit into a funnel
3. place the filter paper and funnel into a beaker
4. obtain 10 ml of unknown solution and 28 ml of NaCl
5. pour both the unknown solution and the NaCl into a beaker that can hold 80ml
6. pour the beaker of mixed solution into the funnel with the funnel paper
7. allow for all of the liquid to filter through the filter paper
8. after all of the liquid has gone into the beaker remove the filter paper and allow the filter paper to dry
9. weigh filter paper to get the amount of precipitate formed