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Butane

Chemistry 101 exam 3 key

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Chemistry 101 - Exam II Name ______________________ 11 April 2018 Show all work for credit. State any assumptions made to solve a problem. Give all numerical answers with the correct number of significant figures. All answers in scientific notation must be in correct scientific notation (i.e., 6.022?1023 not 6.022E23 or 6.022e23). All instances of incorrect scientific notation will result in the loss of 3 points each. All numbers that require units should have the units written. All instances of numbers without units will result in the loss of 3 points each. 1. (32 points) Textbook Problem 7.107 ? Some of the butane, C4H10?, in a 200.0 L cylinder at 26.0 ?C is withdrawn and burned at a constant pressure in an excess of air. As a result, the

Chemistry 101 exam 2 key

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Chemistry 101 - Exam II Name ______________________ 26 October 2016 Show all work for credit. State any assumptions made to solve a problem. Give all numerical answers with the correct number of significant figures. All answers in scientific notation must be in correct scientific notation (i.e., 6.022?1023 not 6.022E23 or 6.022e23). All instances of incorrect scientific notation will result in the loss of 3 points each. All numbers that require units should have the units written. All instances of numbers without units will result in the loss of 3 points each. 1. (26 points) Cetane, C16H34, is a typical petrodiesel with a standard enthalpy of combustion of ?10 699.1 kJ mol?1. Methyl linoleate, C19H34O2, is a biodiesel with a standard enthalpy of

Alkanes

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ORGANIC CHEMISTRY ISU TOPIC: ALKANES Submitted to: Mr. Ram Submitted by: Patrick Do Course Code: SCH4U1 - 02 Date: Thursday February 14, 2013 Alkanes have no functional groups. They are essentially made up of carbon and hydrogen bonded together through single bonds. Alkanes can appear as alkyl groups. The general structure of an alkane is CnH2n+2. a) Straight chain alkanes: Number of Carbons Name of Compound Condensed Formula 1 Methane CH4 2 Ethane CH3 - CH3 3 Propane CH3 - CH2 - CH3 4 Butane CH3 - CH3 - CH3 - CH3 5 Pentane CH3 - CH3 - CH3 - CH3 - CH3 b) Branched alkanes: Number of Carbons Name of Compound Condensed Formula 4 Isobutane (2-methyl propane) CH3 | CH3 - CH - CH3 5 Isopentane
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