Sultanul,+Andy,+Jared,+Richard

**Safety** First!! Keep your goggles on at all times. Clean up your work area and wash your hands before leaving the lab
=The Procedure : =

===In order to start the lab, everyone in our group had put on their goggles and set up our lab station with the burner under a Iron ring holder with the triangle on top of it. Once we finished setting up the lab, what we did was weigh both of the empty crucibles. After we weighed them and came up with mass of each we added a little of unknown hydrates to each. After we added them we we weighed the hydrates and once they were weighed we calculated the mass of each by subtracting the two masses and coming up with how much each hydrate actually weighed. At this point we started to heat the hydrate to evaporate all form of water. We stopped once their was no more vapor mensing from the crucible. After we let it cool for about five minutes we weighed it again and got them mass of the anahydrate. Finally we subtracted the anahydrate mass from the hydrates mass and came up with the amount of water in the hydrate.===


 * Method:**

prepare the lab by equipping your safety goggle on f,or the protection of your eyes have your set up the lab where the burner is on the bottom of the iron ring holder with the triangle holder on top of the iron ring. Weight both of your crucible without anything on it since they might not be the same in weight. the sample of hydrates should be placed in to the crucible and calculate the weight of the hydrate by subtracting the total weight of the crucible with the hydrate from the weight of the crucible alone to find the mass of the hydrate. once you have calculated the mass of the hydrate, have your burner on and start a fight by hitting the striker near the burner while it's on. Be sure to have your crucible under the burner. wait for about five minutes till observe that there is no more vapor/steam coming out of the hydrate because according to the conservation of mass, mass is neither gained or destroyed when it is under a chemical reaction, which mean that water would turn into the vapor/steam and would make it an anhydrous. Record the observations of the anhydrous which may vary depending on how much the hydrate is added. Wait for at least five minute to cool down and weight it again. The weight for the anhydrous should be less since the water evaporated and is not in the solution anymore.Now, Subtract the original mass from the hydrate and the anhydrous to get the mass of water. Then, divide the mass of water by the mass of the hydrate and multiply it by 100 to get the percent composition of water.




