Percentage Yield Lab Report - Sheikh 002226-024 1...

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Volume of hydrogen gas Time Sheikh 002226-024 1 Abu Dhabi International School Grade: 12C (IB II) Ms. Lama
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Sheikh 002226-024 2 Name: Baheej Ibtesam Sheikh Date: 24 January 2011 Grade: IB (II) HL Duration: 1 hour Investigation: Determining the percentage yield of the reaction between magnesium and hydrochloric acid. Criteria Assessed: - Design - Data Collecting and Processing - Conclusion and evaluation
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Sheikh 002226-024 3 Hypothesis: - The volume of the gas in the syringe will increase Dependent Variables: - The volume of the hydrogen gas produced in the syringe Independent Variables: - The intensity of heat applied - The mass of magnesium used Controlled Variables: - None Materials: - 4g of powdered magnesium - Connecting Duct - Gas Syringe - Conical flask - Rubber stopper - Clamp - Spatula - Watch glass - Electronic balance - Pipette
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Sheikh 002226-024 4 Procedure: 1) Using an electronic balance, weigh and place 3.6g of powdered magnesium on a watch glass 2) Using a pipette, pour 30.0ml of 2.0mol of hydrochloric acid in a conical flask. The conical flask should be connected to a gas syringe with a connecting duct. 3) Then, place the powdered magnesium into the conical flask by using a spatula and immediately close the conical flask using a rubber stopper. 4) Record the volume of hydrogen gas that is collected in the syringe. This must
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This note was uploaded on 03/24/2011 for the course ECON 101 taught by Professor Someone during the Spring '11 term at Birla Institute of Technology & Science, Pilani - Hyderabad.

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Percentage Yield Lab Report - Sheikh 002226-024 1...

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