Problems_2290_2009_01

Problems_2290_2009_01 - Chemistry 2290, Winter 2009, G....

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1 Chemistry 2290, Winter 2009, G. Schreckenbach Practice problems –1– Some practice problems from Atkins/ de Paula, 8 th edition Out of the Exercises for chapter 1: E1.1 to 1.4, 1.8, 1.10 to 1.15, 1.16a, 1.17a, 1.18, 1.22 Some practice problems from Atkins/ de Paula, 7 th edition Out of the Exercises for chapter 1: E1.4 to 1.9, 1.11, 1.13 to 1.16, 1.18, 1.19a, 1.20, 1.21a, 1.22, 1.26 Some practice problems from Laidler/ Meiser (Problems adapted from Laidler Meiser Sanctuary, Physical Chemistry, 4 th ed., Houghton Mifflin) Ideal Gas 1. The unit torr, defined as 1/760 atm, is commonly used in the measurement of low pressures, for instance in vacuum technology. Calculate at 298.15K the number of molecules present in 1.00 m 3 at 1.00 x 10 -6 Torr and at 1.00 x 10 -15 Torr (approximately the best vacuum available). 2. The volume of a vacuum manifold (container) used to transfer gases is calibrated using Boyle’s law: After system pumpdown, the manifold is at 10.4 mTorr. A 0.251dm 3 flask at a pressure of 697
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