Explanation: Assuming that helium behaves as an ideal gas, we know that a mole of ideal gas occupies 22.4 litres at STP. The atomic weight of helium is 4 g/mol, so 6 g is 1.5 moles. The volume occupied at STP, therefore, is 22.4 x 1.5 = 33.6 litres .
How many atoms are in 1g of helium?
1 mole Of Helium = Weight of Helium/4Weight of Helium = 1*4 = 4 grams 1 mole of Helium contains 6.023 *1023 (Avogadro number) atoms. one mole is equilant to Avogadro’s number 6.02×10^23 particles.
What is the volume for 2 grams of helium gas at STP?
Hence, the volume of helium gas is 11.20 dm3 .
What is the volume of 1 kg helium?
The volume of 1 kg of helium in a piston-cylinder device is initially 5 m^3 . Now helium is compressed to 2 m^3 while its pressure is maintained constant at 130 kPa.
How many liters are in a gram of STP?
1 mole of any gas at STP occupies 22.4 liters of volume. Using this information, the volume occupied by any number of moles (or grams) can be determined.
Who gave Avogadro number?
The term “Avogadro’s number” was first used by French physicist Jean Baptiste Perrin . In 1909 Perrin reported an estimate of Avogadro’s number based on his work on Brownian motion—the random movement of microscopic particles suspended in a liquid or gas.
How many atoms are in 2 moles helium?
If I fill up a balloon with 2 moles of helium atoms, how many helium atoms would be in the balloon? If 1 mole of atoms is 6.02 x 1023 atoms, then 2 moles of atoms would be equal to 1.20 x 1024 atoms .
What is the volume of helium?
The atomic weight of helium is 4 g/mol, so 6 g is 1.5 moles. The volume occupied at STP, therefore, is 22.4 x 1.5 = 33.6 litres .
How do you find the volume of CO2 at STP?
so 0.15 moles X 22.4 dm 3 /mole=3.36 dm 3 . Next we find the moles of hexane combusted, and then the moles of CO2. Finally, we find the volume of CO2 using the fact that at STP, 1 mole of gas = 22.4 dm 3 .
What is the volume of 1 kg of oxygen?
The volume of 1kg of oxygen gas at NPT is 0.7m^(3) .
How many helium balloons does it take to lift 1kg?
One pound is equivalent to 453.592 grams. Since each helium balloon can lift up to 14 grams, you’ll need 32.39 or 33 balloons to lift a one pound object.
How many grams is 5 liters?
| Volume in Liters: Weight in Grams of: | Water Cooking Oil | 5 l 5,000 g 4,400 g | 6 l 6,000 g 5,280 g | 7 l 7,000 g 6,160 g |
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How do I calculate STP?
- The standard temperature is equal to: 273.15 K = 0°C = 32°F ️ ...
- The standard pressure is equal to: 1 atm = 760 Torr = 760 mm Hg = 101.35 kPa. ...
- 1 mol of ideal gas in these conditions has a volume of 22.4 Liters.
How many liters are in a gram of oxygen?
Hence, moles of oxygen gas = 48 g / 32 g/mole = 1.5 moles. Since each mole occupies 22.4 liters at STP conditions, 1.5 moles of oxygen gas will occupy 1.5 x 22.4 = 33.6 liters . Thus, at STP, 48 g oxygen will occupy 33.6 liters. Hope this helps.
