. What is the volume occupied by 4.35 g of hydrogen gas under a pressure of 3.10 atm and a temperature of 19 °C? m³

A 10.0 L container contains a certain gas at a temperature of 25.0◦C and pressure of 9.50 atm. Calculate the number of moles of gas in the container.

It is known that 28 g of a certain ideal gas occupy 26.4 liters at standard conditions (0° C, 1 atm). The volume occupied by 42 g of this gas at standard conditions (in liters) is: a. 22.4 b. 14.9 c. 33.4 d. more data are needed e. 39.6

Gas is contained in a 6.00-L vessel at a temperature of 18.0°C and a pressure of 8.00 atm. (a) Determine the number of moles of gas in the vessel. 2.00 mol (b) How many molecules are in the vessel? 1.205 X A mole of objects is equal to how many objects? molecules

A sealed 99 m3 tank is filled with 6000 moles of ideal oxygen gas (diatomic) at an initial temperature of 270 K. The gas is heated to a final temperature of 320 K. The atomic mass of oxygen is 16.0 g/mol. The mass density of the oxygen gas, in Sl units, is closest to:

2.40 moles of an ideal gas is initially at 40.0 oC and 1.35 atm. a) What is its volume under these conditions?b) If it is then compressed to one third of its initial volume and its pressure increases to 2.0 atm, what, in Centigrade degrees, will be its temperature?

A hot air balloon uses the principle of buoyancy to create lift. By making the air inside the balloon less dense then the surrounding air, the balloon is able to lift objects many times its own weight. A large hot air balloon has a maximum balloon volume of 2090 m3. a.  If the air temperature in the balloon is 54 °C, how much additional mass, in kilograms, can the balloon lift? Assume the molar mass of air is 28.97 g/mol, the air density is 1.20 kg/m3, and the air pressure is 1 atm.

An ideal gas at 7°C is in a spherical flexible container having a radius of 1.04 cm. The gas is heated at constant pressure to 88°C. Determine the radius of the spherical container after the gas is heated. [Volume of a sphere = (4/3)?r3.]

25. A movable circular lid rests on top of an a gas-filled a cylinder; the cylinder and lid have a radius of 12.0 cm; the lid has a weight of 800 N. Outside the cylinder is atmospheric pressure, 1.01 x 105 Pa. Inside the cylinder are 6.0 moles of argon gas. The gas temperature is 400 °K. What is the volume of the gas (in cubic meters)? The atomic mass of argon is 39.95. (a) 0.04 (b) 0.21 (c) 0.17 (d) 0.13 (e) none of these osodilo 0 (0) 2 (0) SC on (s)

Hydrogen gas is enclosed in a chamber at 200 degrees C and a volume of 0.0250 m3.  Initially, the pressure in the gas is 1.50 x 106 Pa.  The chamber is removed from the heat source and allowed to cool until the pressure in the gas falls to 0.950 x 106 Pa.  What is T2?