C5HW1 4th - CSHWIP Started: October 24, 2010 6:48 PM...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: CSHWIP Started: October 24, 2010 6:48 PM Submitted: Octuher 24, 2010 7:21 PM Time spent: 00:32:32 Total score: 11/12 = 91.6667% Done 1. Convert the Fullnwmg: 8.50 atm tn tnrr Student Response Value Correct Answer Feedback A- 1.12 x 102 ten 5- 1.12 x 10'2 turr 0% C- 6.46 x 10'3 tnrr 0- 6.46 x 103 ten E E. Nune uf these (Cheese thws ohly if he ether answer 15 withm 5% of the correct answer.) Score: 0/1 2. If the barometenc pressure was 745.5 rang wheh the manometer readan them the Figure was made , what Is the pressure cf the gas In the flask m kl1epasca|s?{Du nut type the umts.) Student Response Value Correct Answer Answer: 99.79 100% 99.5 Score: 1/1 3. Suppose that 3.47 mo‘ of hydrogen gas occupwes a 78.0 L steel tahk. At what temperature ih °C wiH the pressure m the tahk be 891 torr.7 (Do not type the umts.) Student Response Value Correct Answer Answer: 45.0 100% 48 Score: 1/1 4. A ba‘luun fiHed with he‘ium uccupies a vu1ume of 1.50 L at 90.5 kPa and ZSIC. What wiH be the volume at the bal‘uun at a pressure of 35.0 We 1f there is he change m temperature? Student Response Value Correct Answer Feedback 0.580 L 1.50 L 1.72 L 2.59 L 3.88 L 100% m WP??? Score: 1/1 What la the effect at the Fallnwmg change on the valume at 1 mol of an Ideal gas? The lr'lltlal pressure Is 722 torr, the final pressure Is 0950 atm, the Initial temperature Is 325F, and the final temperature Is 273 K. Student Response Value Correct Answer Feedback . Valume l5 unchanged 100% a B. Volume lhcreases by about 10% C. volume decreases by abuut 92% D. volume increases by “In E. volume Increases by abnut 90% Score: 1f1 The denslty ufa nuble gas l5 2.71 g/‘l. at 3.00 atm and (PC. Identify the gas. Student Response Value Correct Answer Feedback He Ne 100% Q Ar Kr "190w? Xe Scare: 1f1 A sample of hydrogen gas is contained in a balloon. The volume of the balloon is 2.15 l. at 15-: The temperature is changed until the volume of the balloon is 3.25 L. What is the new temperature of the gas in C? Student Response Value Correct Answer Feedback a A. 152 100% E E. 23 C. -02 D. 191 E. 435 Score: 1/1 8. If the volume of a cylinderrpiston arrangement containing a gas is increased by a factor of eight and the temperature is doubled, the pressure inside the piston Wlll by a factor of Student Response Value Correct Answer Feedback A. decrease, 2 B. increase, 2 a c. decrease, 4 100% m D. increase, 3 E. decrease, 8 Score: 1/1 9. A 125rmL tank is charged With oxygen until the pressure is 75.0 atm at 25-5. Calculate the moles of oxygen in the tank. Student Response Value Correct Answer Feedback A. 383 E. 4.57 C. 0.505 a D. 0383 100% a E. 000378 Score: 1/1 10. A mixture of 2.0 l. of hydrogen and 2.0 L of oxygen at the same temperature and pressure react to form the theoretical yield of water vapor (at the same temperature and pressure). What is the expected final Volume, in L? Student Response Value Correct Answer Feedback A. 1 B. 2 C. 3 100% a D. 4 E. 6 Score: 1/1 11. A sample ofa gaseous compound of nitrogen and oxygen weighs 5.25 g and occupies a volume of 1.00 L at a pressure of 1.25 atm and temperature of 74.0 DC. which of the folloWing molecular formulas could he that of the compound? Student Response Value Correct Answer Feedback NO No2 N305 N20A 100% 5 Correct 01.0an N205 Score: 1/‘1 12. The density ofa gas at 1 atm and D ?C is 1 43 g/L What is the gas? Student Response Value Correct Answer Feedback 2 B. He C CH4 D. 02 100% 5 Correct E. so2 Score: 1/‘1 ...
View Full Document

Page1 / 3

C5HW1 4th - CSHWIP Started: October 24, 2010 6:48 PM...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online