test1-1 - Chemistry 2000 Spring 2001 Section B Test 1 Name:...

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Unformatted text preview: Chemistry 2000 Spring 2001 Section B Test 1 Name: Student number: Aids allowed: Calculator. In particular, periodic tables and other written or printed materials are excluded. Instructions: Answer all questions in the spaces provided. Use the backs of the printed pages only for rough work. If you run out of room for a particular question, you may write in the empty space on this page or in the empty space beneath the formulas on page 6. Data and formulas are collected on the last page of this test. DO NOT OPEN THIS PAPER UNTIL INSTRUCTED TO DO SO. 1 1. The following initial rate data were obtained for the reaction 2NO g O 2 g 2NO 2 g at 25 C: Experiment [NO] (mol/L) O 2 (mol/L) rate (molL 1 s 1 ) 1 0.0020 0.0010 2 8 10 5 2 0.0040 0.0010 1 1 10 4 3 0.0020 0.0020 5 6 10 5 (a) Determine the rate law. [4 marks] (b) Calculate the rate constant. [2 marks] 2. A solution of ethanol (CH 3 CH 2 OH) in water has a molarity of 9.919 mol/L and a density of 0.9139 kg/L. What is the mole fraction of ethanol in this solution? [9 marks] 2 3. The decomposition of dimethyl ether3....
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test1-1 - Chemistry 2000 Spring 2001 Section B Test 1 Name:...

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