MaxTazkiaDylan

Dylan Maida Tazkia Alam March 11, 2009 Chemistry- Lab 16 method write up

To classify the identity of the Hydrate 1, an empty cool crucible was weighed to determine its mass. The crucible was then taken off the scale and two teaspoons of an unknown hydrate were added to the crucible and was weighed. After the unknown crucible was weighed, it was taken off the scale and a series of observations were made. In order to carry out the process of evaporation to remove the water from the unknown hydrate the crucible was placed on a ring stand above a Bunsen burner. Then the unknown hydrate was heated until no water was visible. The crucible was then removed from the stand and was placed on the counter to be cooled for 5 minutes. Once the new unknown anhydrous had been cooled some more observations were made on the new changes. After the observations were made, the crucible was weighed once more to find the unknown anhydrous’ mass. Using the percent composition equation the unknown hydrates identity was discovered - Copper (II) Pentahydrate.


 * the edit at [|Mar 3, 2009 6:57 pm] is listed as a guest - I wasn't logged into my account. (Dylan)