10.86 As discussed in the "Chemistry Put to Work" box in Sec-tion 10.8, enriched uranium can be produced by effusion ofgaseous UF6 across a porous membrane. Suppose a processwere developed to allow effusion of gaseous uranium atoms,Ug). Calculate the ratio of effusion rates for 235U and 238U,and compare it to the ratio for UF6 given in the essay.

Graham’s law of diffusion states that the diffusion of a gas the constant conditions of temperature…

Answered: 10.86 As discussed in the "Chemistry…

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter5: Gases

Section: Chapter Questions

Problem 73QAP

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50 The first step in processing zinc metal from its ore, ZnS, is to react it with O2 according to the reaction 2ZnS(s)+3O2(g)2ZnO(s)+2SO2(g) If 620 kg of ZnS is to be reacted, what volume of oxygen at 0.977 atm 34.0 C is needed (at a minimum) to carry out this reaction?
88 Liquid oxygen for use as a rocket fuel can be produced by cooling dry air to 183°C, where the O2 condenses. How many liters of dry air at 25°C and 750 torr would need to be processed to produce 150 L of liquid O2 at 183°C? (The mole fraction of oxygen in dry air is 0.21, and the density of liquid oxygen is 1.14g/mL.)
Magnesium burns in air to produce magnesium oxide, MgO, and magnesium nitride, Mg3N2 Magnesium nitride reacts with water to give ammonia. Mg3N2(s)+6H2O(l)3Mg(OH)2(s)+2NH3(g) What volume of ammonia gas at 24C and 753 mmHg will be produced from 3.93 g of magnesium nitride?
Automobile air bags are inflated with nitrogen gas, which is formed by the decomposition of solid sodium azide (NaN3). The other product is sodium metal. Calculate the volume of nitrogen gas at 27 C and 756 torr formed by the decomposition of 125 g of sodium azide.
According to your calculations, a reaction should yield 5.67 g of oxygen, O2. What do you expect the volume to be at 23C and 0.894 atm?
You have an equimolar mixture of the gases SO2 and O2, along with some He, in a container fitted with a piston. The density of this mixture at STP is 1.924 g/L. Assume ideal behavior and constant temperature and pressure. a. What is the mole fraction of He in the original mixture? b. The SO2 and O2 react to completion to form SO3. What is the density of the gas mixture after the reaction is complete?
A mixture of chromium and zinc weighing 0.362 g was reacted with an excess of hydrochloric acid. After all the metals in the mixture reacted, 225 mL dry of hydrogen gas was collected at 27C and 750. torr. Determine the mass percent of Zn in the metal sample. [Zinc reacts with hydrochloric acid to produce zinc chloride and hydrogen gas; chromium reacts with hydrochloric acid to produce chromium(III) chloride and hydrogen gas.]
Workers at a research station in the Antarctic collected a sample of air to test for airborne pollutants. They collected the sample in a 1.00-L container at 764 torr and 20 C. Calculate the pressure in the container when it was opened for analysis in a particulate-free clean room in a laboratory in South Carolina, at a temperature of 22 C.

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