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Chem Lab Investigation of a Powder

Chem Lab Investigation of a Powder - Title Investigation of...

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Title: Investigation of a Powder Purpose: The purpose of this lab is to separate a solid and a liquid and the chemical produced by the solution by way hydration, vacuum and filtration separation. Introduction: The concept of the experiment is the separation of a CuSO 4 •5H 2 O from BaSO 4 through filtration. The filtration to be used is a vacuum filtration which draws the solution up against a physical barrier that only allows water to pass through. In this experiment a vacuum is used because the BaSO 4 is a product to be collected and not an undesirable impurity (1) . The filtration process pulls the water through a barrier that does not allow the BaSO 4 to pass through but allows the CuSO 4 •5H 2 O, which has attached itself to the H 2 O. Procedure: (1) 1. Weigh out a 4.5-5.2 gram sample of an unknown powder, place into a 100mL beaker, then combine with 20mL of deionized water inside of the beaker. 2. Acquire a hotplate and set it to 4 or 5, then place the beaker on it and let it heat for 10-15 minutes, stirring occasionally with a glass rod.
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