The lab's goal was to purify a heterogeneous mixture of solid sand, Copper sulfate, & Potassium nitrate, wanting a resulting outcome of pure Potassium nitrate. The experiment required the separations of all components at different steps along the way. The hypothesis was to be able to have pure Potassium nitrate by following the procedure: separation of sand by its lack of solubility and Copper sulfate with its different temperature change to Potassium nitrate. This procedure, however, would not lead to a 100% pure Potassium nitrate, as the final product of Potassium nitrate still retained .05% Copper sulfate. Concluding that this error possibly came from the experiments lack of time. There was a set amount of time given to do all the procedures,
