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The mass of 43,7 L of helium at STP is 7.8 g.

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Q: What is the mass of 43.7 L of helium at STP?
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How much does 75.0 L of helium weigh?

The weight of 75.0 L of helium depends on the temperature and pressure at which it is measured. At standard temperature and pressure (STP), which is 0Ā°C and 1 atmosphere, the molar mass of helium is 4.0 grams per mole. Using the ideal gas law, we can calculate the weight by multiplying the molar mass of helium by the number of moles, which is the volume divided by 22.4 L (molar volume at STP). However, if the temperature and pressure are not at STP, additional information is needed to determine the weight.


What is the answer to this conversion 0.0396 moles of helium into liters at STP?

The volume is 0.887 L.


What is the mass of ethane gas inside a 5.00 L vessel at STP?

6.70 g


How many grams would 2350 L of O2 gas at STP weigh?

The mass is 3,358 kg.


Which 5 L cylinder at STP will contain the greatest mass of gas particles nitrogen or neon?

Neon, as its mass is 20.18 and Nitrogen's is 14.01


What volume is occupied by of 100.0 g of propane gas at STP?

Molar mass of propane = 44 g/mole ... 100 / 44 = 2.727 moles one mole occupies 22.4 L at STP .... 22.4 x 2.727 = 50.91 L


How much does helium cost for one gram?

Helium isn't usually sold by the gram, but by volume. Typical prices for a, say, 15 cubic foot container (that's 15 cubic feet at STP; the container itself is significantly smaller) would be around $50. A cubic foot is about 28.3 L, so that's about $0.12 per liter. A mole of ideal gas at STP is 22.4 L, and a mole of helium would have a mass of 1 gram, so, roughly $2.70 per gram is about right. As with most things, you can get a much better price if you buy in bulk.


At STP 0.250L of an unknown gas has a mass of 1.00 gram. Calculate its molar mass.?

1 standard volume of 1 mole of any gas @ STP is 22.4 LSo the # of moles in a 1 L sample will be:1 L*(1 mol/22.4 L) = 0.04464 molSince you already know the mass of the gas @ STP, the molar mass will be mass/#moles1.92 g/ 0.04464 mol = 43.01 g/mol


How does the density of helium compare with the density of hydrogen?

Helium is denser than hydrogen because as the molecular or atomic mass of a gas increases, density increases as well. Hydrogen has a molecular gas of about 2 g/mol while helium has an atomic mass of about 4 g/mol.


How many grams of FeO2 can be produced from 50.0 L of O2 at STP?

13 L of FeO2 can be produced from 50.0 L of O2 at STP.


How many grams of calcium carbonate are needed to produce 55.0 L of carbon dioxide at STP?

mass of CaCO3 = 246 grams


Calculate the density of nitrogen gas, in grams per liter, at STP?

At Standard Temperature and Pressure (STP), which is defined as 0 degrees Celsius (273.15 Kelvin) and 1 atmosphere pressure, the molar volume of an ideal gas is approximately 22.4 liters/mol. The molar mass of nitrogen gas (Nā‚‚) is approximately 28.02 grams/mol. To calculate the density (D) of nitrogen gas at STP, you can use the ideal gas law: ļæ½ = Molar mass Molar volume at STP D= Molar volume at STP Molar mass ā€‹ ļæ½ = 28.02 ā€‰ g/mol 22.4 ā€‰ L/mol D= 22.4L/mol 28.02g/mol ā€‹ ļæ½ ā‰ˆ 1.25 ā€‰ g/L Dā‰ˆ1.25g/L Therefore, the density of nitrogen gas at STP is approximately 1.25 grams per liter.