lab 6 group

# lab 6 group - Rylee Saunders Lindsey Scheivert Chem 403...

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Rylee Saunders & Lindsey Scheivert Chem 403 10/25/18 Investigating Molar Volume of a Gas Lab Report 1.) Trial 1 Trial 2 Available Volume in Flask 145 mL 145 mL Mass of Mg 0.010 g 0.015 g Initial Pressure 1.0095 atm 1.0025 atm Maximum Pressure 1.0786 atm 1.1146 atm Pressure Change, Δ P 0.0691 atm 0.1121 atm Temperature 22.2 22.6 2.) Mg + 2HCl MgCl 2 + H 2 3.) Trial 1: PV=nRT, n=PV/RT ( 0.0691 atm )( .145 L ) ( 0.08206 L atm / mol 1 K 1 )( 295.2 K ) = 4.14 × 10 -4 moles H 2 Trial 2: ( 0.1121 )( .145 ) ( 0.08206 )( 295.6 ) = 6.70 × 10 -4 moles H 2 4.) Trial 1: 0.010 Mg × 1 mol Mg 24.31 g Mg × 1 mol H 2 1 mol Mg = 4.11 × 10 -4 moles H 2 Trial 2: 0.015 g Mg × 1 mol Mg 24.31 g × 1 mol H 2 1 mol Mg = 6.17 × 10 -4 moles H 2 5.) Trial 1: V m1 = .145 L 4.14 × 10 4 moles = 350.24 L/mol

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Trial 2: V m1 = .145 L 6.70 × 10 4 moles = 216.4 L/mol 6.) Δ PV m 1 T = P stpV m 1 T stp T1: ( 0.0691 )( 350.24 ) 295.2 = ( 1 )( Vm ) 273 (273) 24.20 295.2 = Vm 273 (273) 295.2V
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• Spring '08
• bauer
• Mole, Rylee Saunders

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