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Molecular mass equals 2vapour density?
vapor density =density of gas/density of hydrogen gas=mass of a certain vol. of gas/mass of same vol. of hydrogen gas=mass of n molecules of gas/mass of n molecules of hydrogen gas=mass of 1 molecule of gas/mass of 1 molecule of hydrogen gas=molecular mass of gas/molecular mass of hydrogen gas=molecular mass/22 x vapor density=molecular mass
How do you find molecular mass if specific volume is given?
To find the molecular mass if specific volume is given, you can use the ideal gas law. The ideal gas law relates the pressure, volume, temperature, and the number of moles of gas to the gas constant. By rearranging the ideal gas law equation and solving for the molecular mass, you can determine the molecular mass of the gas.
3 L of a gas weighs 2 g What is the molecular mass?
3 L / 22.414 /mole = 0.1338 moles of the gas 2 g is 0.1338 moles, or 2/0.1338 = 14.948 g/mole is the molecular weight. ( no real gas this light...methane is closest at 16 g/mole)
If an unknow gas diffuses 0.25 times as fast as Helium. What is the molecular mass of the unknown gas?
The rate of diffusion is inversely proportional to the square root of the molecular mass of the gas. Since the unknown gas diffuses 0.25 times as fast as helium, it means the square root of the molecular mass of the unknown gas is 4 times that of helium, thus the molecular mass of the unknown gas is 16 times that of helium, which is approximately 64 g/mol.
How many moles are in 45g of F?
The molecular mass of fluorine gas, F2 is 2(19.0) = 38.0Amount of F2 = mass of sample/molar mass = 9.5/38.0 = 0.25mol There are 0.25 moles of fluorine in a 9.5g pure sample.
Molecular mass equals 2vapour density?
vapor density =density of gas/density of hydrogen gas=mass of a certain vol. of gas/mass of same vol. of hydrogen gas=mass of n molecules of gas/mass of n molecules of hydrogen gas=mass of 1 molecule of gas/mass of 1 molecule of hydrogen gas=molecular mass of gas/molecular mass of hydrogen gas=molecular mass/22 x vapor density=molecular mass
How do you find molecular mass if specific volume is given?
To find the molecular mass if specific volume is given, you can use the ideal gas law. The ideal gas law relates the pressure, volume, temperature, and the number of moles of gas to the gas constant. By rearranging the ideal gas law equation and solving for the molecular mass, you can determine the molecular mass of the gas.
3 L of a gas weighs 2 g What is the molecular mass?
3 L / 22.414 /mole = 0.1338 moles of the gas 2 g is 0.1338 moles, or 2/0.1338 = 14.948 g/mole is the molecular weight. ( no real gas this light...methane is closest at 16 g/mole)
If an unknow gas diffuses 0.25 times as fast as Helium. What is the molecular mass of the unknown gas?
The rate of diffusion is inversely proportional to the square root of the molecular mass of the gas. Since the unknown gas diffuses 0.25 times as fast as helium, it means the square root of the molecular mass of the unknown gas is 4 times that of helium, thus the molecular mass of the unknown gas is 16 times that of helium, which is approximately 64 g/mol.
What is the moleculer mass of a gas that diffuses through a porous membrane 1.86 times faster than Xenon what might the gas be?
The molecular mass of the unknown gas is likely half that of xenon since diffusion rate is inversely proportional to the square root of the molecular weight. Xenon has a molecular weight of 131.29 g/mol, so the unknown gas could have a molecular weight of around 65.65 g/mol.
Why density of carbon di oxide is greater than that of ammonia gas?
The density of a gas is dependent on its molecular weight and the mass of the gas particles. Carbon dioxide (CO2) has a higher molecular weight compared to ammonia (NH3) due to the presence of heavier carbon atoms. This higher molecular weight of CO2 contributes to its greater density compared to ammonia gas.
The molar mass of a gas can be determined from?
for Apex: can be found easily from the periodic table is the mass of a mole of the gas
How many moles are in 45g of F?
The molecular mass of fluorine gas, F2 is 2(19.0) = 38.0Amount of F2 = mass of sample/molar mass = 9.5/38.0 = 0.25mol There are 0.25 moles of fluorine in a 9.5g pure sample.
Why does the molecular size of an individual gas particle have no effect on the total volume of the gas?
gasses take up the entire volume of their containers regardless of their molecular size. The intermolecular space is so huge that their molecular mass is negligible in comparison.
What is the relative mass formula of hydrogen gas?
The molecular mass of hydrogen gas is 2. A molecule of hydrogen gas contains two hydrogen atoms covalently bonded. Since each hydrogen atom has an atomic mass of 1 (as we can derive from the Periodic Table of Elements), the molecular mass of hydrogen gas as a molecule is 1 + 1 = 2.
What is the molecular mass of a gas that diffuses through a porous membrane 2.17 times faster than Xe?
The molecular mass of the gas is 0.459 times that of Xe. This is because the rate of diffusion through a porous membrane is inversely proportional to the square root of the molar mass of the gas. Therefore, if the gas diffuses 2.17 times faster than Xe, its molar mass is 1/2.17 times that of Xe.
Is molar mass is mass in grams of one kilogram of any pure substance?
No, molar mass is the mass in grams of one mole of a substance. One mole is equal to the molecular weight of the substance in grams.
