A 9 liter flask containes 2 x 1023 molecules of air (M=29 g/mol) at 316 K. What is the absolute gas pressure?
A 9 liter flask containes 2 x 1023 molecules of air (M=29 g/mol) at 316 K. What is the absolute gas pressure?
3. Avogadro's law states that a. 1 liter of any gas contains 6.02 x 1023 gas molecules. b. the volume of a gas is directly proportional to its temperature. c. the gas constant equals 0.0821 L atm/(mol K) for all ideal gases. d. the volume of a gas must always be a constant. e. equal volumes of all gases at the same pressure and temperature contain an equal number of moles.
name Prelaboratory Assignment: Gas Laws Technical objective: A flask with a sample of gas at room temperature and pressure weighs 97.4842 g. The same flask with air (density 1.17 g/L) weighs 96.8848 g. The same flask filled with water ( 0.998 g/mL) weighs 345.86 g. The pressure in the room is 0.989 atm and the temperature is 22.2°C. 1. Calculate the volume of the flask. 2. Calculate the mass of the air that the flask can hold. 3. Calculate the...
One liter of gas A at 2 atm pressure and two liters of gas B at 3 atm are mixed in a 4 liter flask. What will be the final pressure if the gases initially and finally are at the same temperature? What will be the average molecular weight of the mixture if the weight of A + B is 24 g and the temperature is 60?
NA 6.022 x 103 molecules/mole k 1.381 x 1023 J/K c 2.997 x 108 m/s 1 cal 4.186 J mp 1.673 x 1027 kg 1 atm 1.013 bar h 6.626 x 10-34 Js R 8.315 J/(mol K) 1 bar 10% Pa 1. (15 points) 2.0 moles of a monatomic ideal gas undergo a 3 step cyclic process. The process begins in state A at 1.00 atm, 297 K. The gas is heated slowly at constant pressure until it reaches state...
A gas cylinder contains 7.55×1023 Oxygen molecules at a temperature of 373 K. What is the thermal energy of the gas?
4. A flask with a volume of 2.20 L, provided with a stopcock, contains ethane gas (C2H6) at a temperature of 310 K and atmospheric pressure 1.013x10 Pa. The molar mass of ethane is 30.1 g/mol. The system is warmed to a temperature of 375 K, with the stopcock open to the atmosphere. The stopcock is then closed, and the flask cooled to its original temperature. A) What is the final pressure of the ethane in the flask? B) Find...
If 4.05 x 1023 molecules of a substance have a mass of 86.2 g, what is the molar mass of the substance? Multiple Choice 128 g/mol 3.49 1025 g/mol 0 2.13 * 1022 g/mol 4.70 * 1021 g/mol 58.0 g/mol
The ideal pressure of 1.00 mol CH3Cl gas in a 4.50 L flask at 100.0 K is 1.82 atm. What is its real pressure? For CH3Cl: a = 7.570 atm∙L2 /mol2 b = 0.06483 L/mol a. 1.27 atm b. 1.45 atm c. 1.48 atm d. 1.51 atm e. 1.58 atm
What is the mass of a 5 mol sample of air? (M 29 g/mol) Mass of Air =Number grams
1. 2.35 x 1023 molecules of CO2 gas are in a sealed container. What is the volume, in liters, of the container? 2. How do the following affect the position of equilibrium in the following reaction? CaC2(s) + 2H2O(g) ⇌ Ca(OH)2(aq) + C2H2(g) a. addition of acetylene (C2H2) gas b. removal of some of the water c. increase in pressure d. removing some of the calcium hydroxide e. increase in volume of reaction container f. addition of...