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mass = density * volume.

Air density is p/RT, where R is the gas constant for air (287 J/kg-K), T is the absolute temperature and p is the pressure, equal to 101325 Pa at sea level.

At sea level and room temperature, the density of air is

rho 101325 N/m2/(287 N-m/(kg-K)*293 K

or about 1.2 kg/m3.

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16y ago
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15y ago

Convert to mole percent which you can do by assuming a basis of say 100kg of air and working out the mass of each component. Then convert each of these to number of moles by using the molecular weight. moles(component)/total moles will give you mol% for air should be 0.21 O2 and 0.79N2 and mol% is equivalent to vol%.

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12y ago

You can measure air in volume, such as cubic meters or liters or gallons.

Otherwise, you can measure the weight of air if you already have the volume, at Standard temperature and pressure air has a density of 1.2754 kg/cubic meter.

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12y ago

That depends what property of air you want to measure: its mass, pressure, percentage of the different gases, etc.

That depends what property of air you want to measure: its mass, pressure, percentage of the different gases, etc.

That depends what property of air you want to measure: its mass, pressure, percentage of the different gases, etc.

That depends what property of air you want to measure: its mass, pressure, percentage of the different gases, etc.

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10y ago

you measure it with a barometer.That is i guess it is.

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9y ago

Air mass is measured by dividing 1 by the cosine of the zenith angle. The air mass is 1 when the sun is directly overhead.

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12y ago

you put a scale into a vacum and then drain the air. then you reset the scale to zero and let the air back in to get the mass.

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12y ago
  1. you can measured the mass of air with an air pressure.
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12y ago

That depends what property of air you want to measure: its mass, pressure, percentage of the different gases, etc.

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Q: How could you measure the mass of the air?
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