105 F11 Lecture 25 cmpd

105 F11 Lecture 25 cmpd - multiple gases are added to the...

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Chem 105
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Comments If your test average is less than 50% I want to meet with you. Utilize TA and instructor office hours Deadline to resolve Exam 2 issues extended to Monday. Necessary Skills list updated for Chapter 10 tonight.
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Starting where we left off As you know, nitrogen triiodide is unstable, and produces gases upon decomposition by the reaction: 2NI3  N2 + 3I2 If 5.01 grams of NI3 are decomposed, how many liters of gases will be produced at STP?
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More Practice A balloon is filled with 10.0-L He and released in California (P = 770 torr) at 293 K. What is the volume of the gas when it gets to 16,000 feet, where the pressure is 380 torr and the temp is 256 K?
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Gas density w/ the Ideal Gas Law Treating N2 like an ideal gas, what is the density of this gas at STP? 1.25 g/L
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How does pressure change when
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Unformatted text preview: multiple gases are added to the same container? Remember that gases mix to make homogenous mixtures. Each gas pressure adds to the total pressure. Total pressure is the sum of the “partial” pressure of the constituents. P1 + P2+ P3 + ∙ ∙ ∙ = Ptotal Zn + HCl demo Adding gases to a balloon Zn (s) + 2HCl (l) ZnCl2 (aq) + H2 (g) The H2 gas from the above reaction is collected over water at 25°C. At this temperature, the evaporating water exerts a pressure of 23.76 torr. When the Zn metal is reacted, 151 mL of water is displaced. If the atmospheric pressure is A diver uses a gaseous mixture of 51.2 g of O2 and 32.6 g of He in a 10-L tank. The temperature of the gas is 19 °C. What is the total pressure of the gas mixture? A. 3.83 B. 7.67 C. 19.5 D. 23.4 E. 343...
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This note was uploaded on 02/28/2012 for the course CHEM 105 taught by Professor Macedone during the Fall '07 term at BYU.

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105 F11 Lecture 25 cmpd - multiple gases are added to the...

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