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If something takes up space, it must have a mass.
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∙ 11y ago
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Why is it important to know the mass and volume of gas at STP?
To find it's density
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
Can the mass of gas be measured?
sure. we know that the molarity of gas in a constant temperature and pressure (exp, room temperature, 25 celcius, 1 atm) will have a constant volume. in 25'c, 1 atm, the volume of one mole of gas is 24.5 L. so that if we know the volume of the gas, we can divide it by 24.5, such that we can determine the molarity of that gas. and molarity times molar mass will equal to the mass of a type of gas. calculation : given a known volume V at 25'c , 1atm no of mole of gas = v / 24.5 = q mole of gas. mass of gas = q(no of mole of gas) x Mr(molecular mass of that type of gas) *assumption : it is a pure gas (contain the same type of gas), and we also know the type of gas we are testing( so that we know the molecular mass of that gas) method 2: 1) weight the mass of a balloon(p). 2) pump the gas/ gasses into the balloon, weight the mass of the balloon +gasses(q). 3) p-q = weight of the gasses * disadvantages : we cannot define the mixture of gasses inside the balloon. * since we got analytic chemistry, we can put the gasses into a nuclear magnetic resonance spectorscopy and analyse the substance inside the balloon because of chemial shift.
What is the density of gas that has a gram molecular mass of 32 grams?
To calculate the density of a gas, we need to know the molar mass and the pressure and temperature conditions. Without this information, we cannot determine the density of the gas.
What elements mass is 30 and a noble gas but not neon?
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
Why is it important to know the mass and volume of gas at STP?
To find it's density
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
Can the mass of gas be measured?
sure. we know that the molarity of gas in a constant temperature and pressure (exp, room temperature, 25 celcius, 1 atm) will have a constant volume. in 25'c, 1 atm, the volume of one mole of gas is 24.5 L. so that if we know the volume of the gas, we can divide it by 24.5, such that we can determine the molarity of that gas. and molarity times molar mass will equal to the mass of a type of gas. calculation : given a known volume V at 25'c , 1atm no of mole of gas = v / 24.5 = q mole of gas. mass of gas = q(no of mole of gas) x Mr(molecular mass of that type of gas) *assumption : it is a pure gas (contain the same type of gas), and we also know the type of gas we are testing( so that we know the molecular mass of that gas) method 2: 1) weight the mass of a balloon(p). 2) pump the gas/ gasses into the balloon, weight the mass of the balloon +gasses(q). 3) p-q = weight of the gasses * disadvantages : we cannot define the mixture of gasses inside the balloon. * since we got analytic chemistry, we can put the gasses into a nuclear magnetic resonance spectorscopy and analyse the substance inside the balloon because of chemial shift.
What must you know to calculate pressure?
Area of the container and the mass of the gas or liquid inside.
What is the density of gas that has a gram molecular mass of 32 grams?
To calculate the density of a gas, we need to know the molar mass and the pressure and temperature conditions. Without this information, we cannot determine the density of the gas.
Does gas have definite mass?
Yes. Gas Mass = sum of gas atoms= n(gas atoms).
If Saturn is a gas giant and by the ideal gas law gasses are massless how does it have a gravitational attraction force I know that in quantum chemistry the ideal gas law breaks down and no longer app?
The ideal gas law does not hold that gasses are massless. Gas does indeed have mass. Saturn has a mass of about 5.68*1026 kilograms.
What supports the idea that mass is conserved in a reaction that produces a gas as a product?
Trapping the gas and measuring its mass...
What elements mass is 30 and a noble gas but not neon?
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
What is a gas and has as mass number of 19?
Fluorine is a gas with a mass number 19.
Does a hot gas have ore mass than the some gas when it is cold?
No. Heat doesn't change the mass of a gas.
Properties of mass gas?
The speed of the molecules in a gas is proportional to the temperature and is inversely proportional to molar mass of the gas.
