Without parts A and B, I don't know how we're supposed to guess. This is not the psychic network.
Let's go with argon, it's monatomic and at least you won't look like a total idiot for naming something that isn't a monatomic gas.
Any gas can have that mass. If you want to distinguish between different gases, you have to enquire about their density, as measured in grams per cubic meter. Which can be looked up in the Handbook Of Physics And Chemistry.
argon
oxygen
Potassium bromide is KBr, so by adding together their molar masses, we get 39+80=119gmol-1
Trapping the gas and measuring its mass...
Yes as is the molar mass of anything else.
Xenon has a relative mass of 131.293. A gas which diffuses 1.86 times faster would have a mass of 37.950 approx. The nearest gas is Argon with a mass of 39.948.
No halogen gas has a mass of under 15 atomic mass units. The closest is fluorine, at 19.0 atomic mass units.
166 g = 0.166 kg
Potassium bromide is KBr, so by adding together their molar masses, we get 39+80=119gmol-1
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
Yes. Gas Mass = sum of gas atoms= n(gas atoms).
Trapping the gas and measuring its mass...
There is no such noble gas with an atomic mass of 30. The mass of neon is 20 and the mass of the next noble gas, argon, is 40
Fluorine is a gas with a mass number 19.
No. Heat doesn't change the mass of a gas.
The speed of the molecules in a gas is proportional to the temperature and is inversely proportional to molar mass of the gas.
Yes. Jupiter is a gas planet, but that gas still has plenty of mass.
The element with a mass number of 19 could be fluorine, which is a halogen and a gas, but not a noble gas.
all do. gas is a type of matter andall matter has mass and volume.