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Empirical Formula Determination
Member rating: No Rating | Words: | Submitted: Fri Mar 04 2005
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Name: Jonathan Tam Class: 12A Chemistry Experiment report Empirical Formula Determination Aim: To find the empirical formula of Copper oxide Equipment: Bunsen burner Boss Heatproof mat Clamp Combustion tube Delivery tube Retort Stand Mineral paper Method: 1. Put a square of mineral paper in the combustion tube. Weigh the tube. 2. Add a spatula of copper oxide. Reweigh the combustion tube. 3. Setup the apparatus. Hold the tube in a metal clamp. Join the delivery tube to a gas tap. 4. Turn on the gas tap. Let the gas flow for thirty seconds. Light the gas at the small hole at arm's length. Adjust the gas tap to make a small flame. 5. Strongly heat the copper oxide until a reaction takes place. 6. Turn off the Bunsen burner. Let the gas flow through the tube until it has cooled down. 7. Turn the gas off and reweigh. Diagram: Results: Mass of delivery tube: 50.48g Mass of delivery tube and copper oxide: 57.72g Mass of delivery tube and copper 56.26g Mass of copper oxide 7.24g Mass of copper: 5.78g Analysis: Mass of copper metal: 5.78 Mass of oxygen: 7.24 - 5.78...
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