The mass of 43,7 L of helium at STP is 7.8 g.
6.70 g
The mass is 3,358 kg.
13 L of FeO2 can be produced from 50.0 L of O2 at STP.
At STP 1 mole of every gas has the volume of 22.4 dm3. (1 dm3 = 1 L)According to previous law, 1 mol - 22.4 dm3 x - 5.68 dm3-------------------------- x = 0.2536 mol1 mol of NO weights 30 g (Ar for N is 14, and Ar for O is 16. Mr(NO) = Ar(N) + Ar(O)), so1 mol - 30 g0.2536 mol - x------------------------------x = 7.6080 gSo the mass of 5.68 L of NO at STP is 7.6080 grams.
No, one mole of each, having the same VOLUME (about 22.4 L at STP), differ though in their masses: 32 g/mol for O2 and 28 g/mol for N2 So their densities (mass per volume) also differ in the same way: 1.43 g/L and 1.25 g/L respectively, at STP.
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.
The volume is 0.887 L.
6.70 g
The mass is 3,358 kg.
Neon, as its mass is 20.18 and Nitrogen's is 14.01
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
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.
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
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.
13 L of FeO2 can be produced from 50.0 L of O2 at STP.
mass of CaCO3 = 246 grams
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 1.25 ā g/L Dā1.25g/L Therefore, the density of nitrogen gas at STP is approximately 1.25 grams per liter.