View the step-by-step solution to:

# thomas (tt9669) - HW#16 Mar6 - sparks - (51485) This print-out should have 11 questions. Multiple-choice questions may continue on the next column or...

Can you answer 2,3,4,5, and 9?

thomas (tt9669) – HW#16 Mar6 – sparks – (51485) 1 This print-out should have 11 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. 001 10.0 points A sample oF gas exerts a pressure oF 7395 torr. What is the pressure oF the gas expressed in atmospheres? Answer in units oF atm 002 (part 1 of 2) 10.0 points Suppose that 4 . 8 L oF methane at a pressure oF 854 Torr is transFerred to a vessel oF volume 4 . 1 L. What is the fnal pressure oF methane iF the change occurs at constant temperature? Answer in units oF Torr 003 (part 2 of 2) 10.0 points A ±uorinated organic gas in a cylinder is com- pressed From an initial volume oF 940 mL at 154 Pa to 498 mL at the same temperature. What is the fnal pressure? Answer in units oF Pa 004 10.0 points An empty aerosol-spray can at room temper- ature (20 C) is thrown into an incinerator where the temperature reaches 666 C. IF the gas inside the empty container was initially at a pressure oF 1 atm, what pressure did it reach inside the incinerator? Assume the gas was at constant volume and the can did not explode. Answer in units oF atm 005 10.0 points A block oF dry ice weighs 26 lb. How many liters oF gaseous CO 2 , measured at STP, does this block oF dry ice represent? Answer in units oF liters 006 10.0 points We have talked about number density and mass density. IF not specifed, ”density” al- ways means mass density. Which gas is most dense at 1 atm and 25 C? 1. hydrogen cyanide 2. hydrogen sulfde 3. nitrogen monoxide 4. nitrogen dioxide 5. carbon monoxide 007 10.0 points Calculate the mass oF sulFur hexa±uoride in a 2.00 L container at a pressure oF 4.00 atm and a temperature oF 78 C. The molar mass oF sulFur hexa±uoride is 146 . 1 g · mol 1 . 1. 36.6 g 2. 183 g 3. 73.1 g 4. 40.6 g 5. 0.401 g 008 10.0 points 1 atm = 101.325 kPa The density oF citronellal, a mosquito re- pellant, is 1 . 45 g · L 1 at 365 C and 50.0 kPa. What is the molar mass oF citronellal? 1. 95 . 7 g · mol 1 2. 154 g · mol 1 3. 73 . 2 g · mol 1 4. 37 . 5 g · mol 1 5. 88 . 0 g · mol 1 009 10.0 points An airbag in±ates in less than 50 msec by the reaction oF NaN 3 to produce Na and nitrogen gas at 25 C. NaN 3 Na + N 2 The volume oF the airbag is about 30 liters, and it is flled to a pressure oF 1.4 atm. How much NaN 3 must be used For each air bag?
thomas (tt9669) – HW#16 Mar6 – sparks – (51485) 2 Do not forget to balance the equation! The molar mass of NaN 3 is 65.1 g/mol. Answer in units of grams 010 10.0 points H2 and Cl2 are both gases. Given a percent yield of 45.0% for the reac- tion: H 2 + Cl 2 2 HCl(g) How many moles of HCl gas are produced if 15.5 L of Cl 2 at STP and excess H 2 are reacted? 1. 0.769 mol 2. 1.38 mol 3. 0.622 mol 4. 0.346 mol 5. 3.08 mol 6. 0.156 mol 011 10.0 points Consider the following reaction of Al with HCl to produce hydrogen gas. 2 Al + 6 HCl 2 AlCl 3 + 3 H 2 This reaction has a yield of 82.5 percent. How many moles of HCl are needed to produce 14.0 L of H 2 at 351 K and 1.11 atm? 1. 0.540 mol 2. 0.223 mol 3. 0.890 mol 4. 1.08 mol 5. 0.446 mol 6. 0.655 mol 7. 1.31 mol

Please see attached solution for the problems you have asked. I have been as accurate as... View the full answer

Wednesday, March 13, 2013
11:01 PM 1 l b = 0.453592 kg
R = 8.31451 kJ/kg. mol Unfiled Notes Page 1 65.0099 g/mol
Sodium azide, Molar mass Unfiled Notes Page 2

### Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

### -

Educational Resources
• ### -

Study Documents

Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

Browse Documents