1 Drill-1-Set-B.pdf - Google Drive140om file/d/168319xWk3VB4pwRANaFP44 RA wO CHEM 18.1 - 29L KAS 1- W1O MCB 11 LaboratoryBS ABT FILESAGRI 41 WSC Lectu..9 SAISA Open with Adobe Acrobat DC4. Starting from the universal gas constant (R = U.0821 , determine ue Volume (In L) occupled by2.45 moles of an ideal gas at 32.0°C and a pressure of 0.956 atm.5. Cadmium (Cd) is a heavy metal which has a leaching rate of about 0.0012 mg/L per year. Consider a lakewhich has a volume of 2.25 x 10° L, and initially contains 0.002 kg of Pb. Determine the amount of Pb (in kg)present in the lake after 5.0 years assuming that there is no evaporation of water from the lake's surface.Jseful conversion factors1 tbsp = 14.79 mL1 Pa = 1 N/m²Page3 3

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. Starting from the universal gas constant (R = U.0821 , determine ue volume (In L) occupled by 2.45 moles of an ideal gas at 32.0°C and a pressure of 0.956 atm. mol-K

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter5: Gases

Section: Chapter Questions

Problem 161CP: Methane (CH4) gas flows into a combustion chamber at a rate of 200. L/min at 1.50 atm and ambient...

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Methane (CH4) gas flows into a combustion chamber at a rate of 200. L/min at 1.50 atm and ambient temperature. Air is added to the chamber at 1.00 atm and the same temperature, and the gases are ignited. a. To ensure complete combustion of CH4 to CO2(g) and H2O(g), three times as much oxygen as is necessary is reacted. Assuming air is 21 mole percent O2 and 79 mole percent N2, calculate the flow rate of air necessary to deliver the required amount of oxygen. b. Under the conditions in part a, combustion of methane was not complete as a mixture of CO2(g) and CO(g) was produced. It was determined that 95.0% of the carbon in the exhaust gas was present in CO2. The remainder was present as carbon in CO. Calculate the composition of the exhaust gas in terms of mole fraction of CO, CO2, O2, N2, and H2O. Assume CH4 is completely reacted and N2 is unreacted.
perform stoichiometric ca1cu1uions for reactions involving gases as reactants or products.
5-54 Automobile air bags are inflated by nitrogen gas. When a significant collision occurs, an electronic sensor triggers the decomposition of sodium azide to form nitrogen gas and sodium metal. The nitrogen gas then inflates nylon bags, which protect the driver and front-seat passenger from impact with the dashboard and windshield. What volume of nitrogen gas measured at 1 atm and 27°C is formed by the decomposition of 100. g of sodium azide?
What is the value of FP for a sample of gas whose temperature is -33.0 C and volume is 0.0250 L? What temperature is required to change the volume to 66.9 cm3?
5-39 An 8.00-g sample of a gas occupies 22.4 L at 2.00 atm and 273 K. What is the molar mass of the gas?
Scottish physicist W. J. M. Rankine proposed an absolute temperature scale based on the Fahrenheit degree, now called degree Rankine abbreviated R and used by some engineering fields. If a degree Rankine is 5/9 of a degree Kelvin, what is the value of the ideal gas law constant in L. atm/mol. R?
Exhaled air contains 74.5% N2, 15.7% O2, 3.6% CO2, and 6.2% H2O (mole percent). (a) Calculate the molar mass of exhaled air. (b) Calculate the density of exhaled air at 37C and 757 mm Hg and compare the value you obtained with that of ordinary air (MM=29.0g/mol) under the same conditions.
5-37 A sample of a gas at 77°C and 1.33 atm occupies a volume of 50.3 L. (a) How many moles of the gas are present? (b) Does your answer depend on knowing what gas it is?
While resting, the average 70-kg human male consumes 14 L of pure O2 per hour at 25 C and 100 kPa. How many moles of 02 are consumed by a 70 kg man while resting for 1.0 h?
The second virial coefficient B and the third viral coefficient C for Ar are -0.021 L/mol and 0.0012 L2/mol2 at 273 K, respectively. By what percentage does the compressibility change when you include the third virial term?
Target check For each of the macroscopic charcateristics unique to the gas phase of matter described in section 4.1-a compressibility, b expandability, c low density, d may be mixed in a fixed volume, and e uniform, constant pressure on container walls-describe how a postulate of the kinetic molecular theory explains the reason for the characteristic.
A CamScanner 09-05-2021 08.01.p x O File | C:/Users/taylo/OneDrive/Desktop/CamScanner%2009-05-2021%2008.01.pdf (D Page view A Read aloud V Draw E Highlight O Erase 5 of 9 Scanned with CamScanner E1C.3(a) A gas at 250 K and 15 atm has a molar volume 12 per cent smaller than that calculated from the perfect gas law. Calculate (i) the compression factor under these conditions and (ii) the molar volume of the gas. Which are dominating in the sample, the astractive or the repulsive forces? E1C.3(b) A gas at 350 K and 12 atm has a molar volume 12 per cent larger than that calculated from the perfect gas law. Calculate (i) the compression factor under these conditions and (ii) the molar volume of the gas. Which are dominating in the sample, the attractive or the repulsive forces? Scanned with CamScanner O Ai 56°F Sunny ^ O G 1) 8:15 AM