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Unformatted text preview: CHEMISTRY 1AO3 TUTORIAL #6 Oct. 19-23, 2009 Questions Chapters 15 and 5 ______________________________________________________________________________ Page 1 of 3 The following problems (1-7) are based on material from Chapters 15 and class notes. 1. Write the expression for the equilibrium constant, K c for each of the following reactions: 2. For the gas phase reaction H 2 + I 2 2HI at 490 o C, the equilibrium concentrations (in mol litre-1 ) are: [H 2 ] = 8.62 10-4 M, [I 2 ] = 2.63 10-3 M, [HI] = 1.02 10-2 M. (a) Calculate K c for the equilibrium (b) What is K c for the reverse reaction, such that: HI 1/2 H 2 + 1/2I 2 ? (c) When one mole of H 2 and one mole of I 2 in a 1.00 litre container are heated to 490 o C, what are the equilibrium concentrations of H 2 , I 2 and HI ? (d) Under the same conditions as for (c), an extra 0.20 mole of H 2 are added; what are the concentrations of H 2 , I 2 and HI when equilibrium has been reached?...
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This note was uploaded on 12/20/2010 for the course CHEM 1a03 taught by Professor Landry during the Spring '08 term at McMaster University.
- Spring '08