What is the density (in g/L) of methane at 25°C and 1.2 atm of pressure? The value of R = 0.0821 L atm mor-1 K-1?
0.785
1.20
9.9
4.90 * 10-2
What is the density (in g/L) of methane at 25°C and 1.2 atm of pressure?
What is the density of CO2(g) at 100.°C and 10.0 atm pressure? (R = 0.08206 L. atm/K - mol) Multiple Choice o 14.4 g/L o 134 g/L o 53.6 g/L o 1.44 g/L o 44.0 g/l
1) What is the final pressure (expressed in atm) of a 3.05 L system initially at 724 mm Hg and 298 K that is compressed to a final volume of 2.51 L at 273 K? 1) 2) What is the pressure of a 1.0 L flask containing 0.60% of He at 25°C? (R-0.0821 L atm/mol K) 3) What is the volume of 28.0 g of nitrogen gas at STP? 3) 4) What is the final pressure of a system (atm)...
A gas cylinder containing 1.50 mol compressed methane has a volume of 3.30 L. What pressure does the methane exert on the walls of the cylinder if its temperature is 25°C? (R = 0.08206 L• atm/K • mol) Multiple Choice Ο 9.00 x 10-2 atm Ο 1.11 atm Ο 11.1 atm Ο 0.933 atm Ο 1.70 atm
1)Calculate the density of chlorine, Cl2 , in grams per litre (g L-1) at 25 degrees Celcius and 0.850 atm. R= 0.0821 L atm K-1 mol-1 M(Cl2)= 70.91gmol-1 (Please show two possible ways to do it) 2)Explain why the vapour pressure of a liquid depends on the intermolecular forces present? My ans: weaker intermolecular forces=particles enter into vapour phase easier+higher vapour pressure. (I only got 1 mark for this. It was worth 2. I failed to explain why) HELP!!
10. Calculate the density, in g/L. of CO, gas at 27°C and 0.50 atm pressure. A) 0.89 g L B ) 1.12 g/L. C) 9.93 g/I. D) 46.0 g/L 11. A mixture of three gases has a total pressure of 1,380 inmHg at 298 K. The mixture is analyzed and is found to contain 1.27 mol CO, 3.04 mol CO, and 1.50 mol Ar. What is the partial pressure of Ar? A) 301 mmHg B) 356 mmHg C) 5.345 mmHg...
Class-work ch.6 and ch. 10 Name 1) What is the final pressure (expressed in atm) of a 3.05 L system initially at 7wHg and 2 that is compressed to a final volume of 2.51 L at 273 K 1) 2) What is the pressure of a 1.0 L flask containing 0.60g of He at 25°C? (R-0.0821 L atm/mol K) 3) What is the volume of 28.0 g of nitrogen gas at STP? 3) 4) What is the final pressure of...
If 3.05 mol of a gas has a volume of 43.3 L and a pressure of 1.55 atm, what is the temperature? Use R= 0.0821 atm. L/mol K. K
1a) Calculate the Volume in L of 1.2 moles of CH4 confined in a container at a pressure of 10 atm at 323 K. Use the ideal gas equation. C=12 g/mol H= 1 g /mol T(K)= T(°C)+273.15 R=0.0821 L-atm/mol-K PV=nRT answer a)0.318 b)90.2 c)3.18 d)31.8 1b) Is the number of particles or spheres in the cubic cell centered on the body? answer 1)3 2)4 3)1 4)2 3c) in the solid state does it form molecular crystals answer a)NaCL b)graphite c)CO2...
A 125 mL glass bulb contains 0.138 g sample of propane, C3H8, at 22C. What is the pressure of this gas? [R = 0.0821 L atm mol-1 K-1] a. 0.61 atm b. 0.28 atm c. 0.045 atm d. 0.0061 atm e. 0.000045 atm Acetylene can be made by reacting calcium carbide with water: CaC2(s) + 2 H2O(l)→Ca(OH)2(s) + C2H2(g) What is the maximum volume of acetylene that can be obtained from 225 g of calcium carbide at 23C and 645...
f 0.357 g of CHi gas is introduced into an evacuated 1.75 L flask at 25 °C, what is the pressure inside the flask? (R= 0.08206 L-atm/mol-K) a. 0.311 atm b. 0.261 atm c. 0.419 atm d. 4.99 atm e. 0.952 atm Calculate the density (in g/L) of CH&g) at 75 °C and 2.1 atm. (R 0.08206 L-atm/mol-K) a. 1.2 g/L b. 5.5 g/L c. 0.85 g/L d. 0.18 g/L e. 3.2 g/L wer Robert Boyle observed that the volume...