reaction-reversibiltiy

reaction-reversibiltiy - Reaction Reversibility Read 14.2...

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Reaction Reversibility Read 14.2 (pg. 553) 1. Colourless N 2 O 4 gas breaks down into brown NO 2 gas. Write the equilibrium equation for this reaction. 2. How is the existence of equilibrium indicated in a chemical equation? 3. Because the two gasses in this equilibrium are different colours, their concentrations can be determined using a spectrophotometer. The following chart indicates what happens over time following the addition of 1 mol N 2 O 4 to an empty 1 L vessel. Plot the data (include title and label axes). Time (min) 0 1 2 3 4 5 6 7 8 9 10 11 12 [N 2 O 4 ] 1.00 0.70 0.45 0.35 0.30 0.27 0.25 0.23 0.22 0.21 0.20 0.20 0.20 [NO 2 ] 0 0.60 1.10 1.30 1.40 1.46 1.50 1.54 1.56 1.58 1.60 1.60 1.60 4. Was all of the N 2 O 4 used up in the reaction? How does the graph show this? 5. According to the graph, how many moles of NO 2 were produced? 6. How many moles of NO 2 would have been produced if all of the N 2 O 4 was used up? 7.
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This note was uploaded on 04/12/2011 for the course CHEM 1010 taught by Professor Marshall during the Spring '11 term at North Texas.

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