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It is the weighted average of the individual molecular weights of the components oxygen and nitrogen. Generally speaking, air is composed of 21% oxygen and 79% nitrogen. Thus the average molecular weight of air is calculated as follows:
MW air = (.21)*(MW O2) + (.79)*(MW N2)
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What is the molecular weight for Vitamin E?
Molecular formula: C29H50O2 Molecular weight: 430.71 CAS Number: 2074-53-5
How do you calculate the molecular weight and the uncertainty of the molecular weight of a unknown solute using propagated error?
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What is the Molecular weight of magnesium bicarbonate?
MgCO3 has a molar mass (molecular weight) of 84.3139 g/mol.
Does an increase in molecular weight speed up molecular movement?
no relation iz between molecular weight and movement which iz a function of temperature only.
Is molecular weight the same as mass?
Technically... not really. It would perhaps be more accurate to use the terms formula mass and molecular mass rather than formula weight and molecular weight. This because in physical terms, weight is a force while mass is a measure of the amount of substance in something.
What is average molecular weight of air?
The average molecular weight of dry air is 28.96 g/gmol.
Molecular weight of air at standard conditions?
First, molecular weight is a direct function of the level of dissociation and hence an indirect function of temperature. Dissociated Air has a significantly (about an order or magnitude) lower molecular weight as associated air (e.g. air at room temperature). Dissociation for air starts somewhere around 2000 Celsius (that's where O2 goes into O+O) and hence, the molecular weight of air up to 2000 Celsius is constant. This also affects the "specific gas constant" which drastically decreases in temperature regimes where dissociation occurs.With that said, the molecular weight of DRY air (no water vapor) is 28.97. Engineering Toolbox does a good job of breaking down the composition of associated air, see the URL below:http://www.engineeringtoolbox.com/molecular-mass-air-d_679.html
Why is water vapor lighter than air?
Water evaporated at atmospheric pressure is 1601 times less dense than liquid water. Air is 1225 times less dense than liquid water.Nitrogen gas the primary component of air has a molecular weight of 28.014.Oxygen the secondary component of air has a molecular weight of 31.998.Water has a molecular weight of 18.015. Water is lighter in the gaseous state.
Why is the gas sulfur hexafluoride heavier then air?
The density of a gas is propotional to its molecular weight. Air is composed of primarily of nitrogen and oxygen, which have molecular weights of about 28 g/mol and 32 g/mol respectively. Sulfur hexafluoride has a molecular weight of about 146 g/mol, which would make it roughly 5 times denser than air.
What is the molecular weight of chymotrypsin?
It has a molecular weight of 21,600 Daltons
What is the molecular weight and molecular formula of potassium humate?
molecular structur C9H8K2O4molecular weight: 258.35
If you have molecular weight how can you find equivalent weight?
Equivalent weight ofc11h17n3os2 from molecular weight271.402
How many moles of air are in the ball If soccer ball of constant volume 2.24 liters is pumped up with air to a gauge pressure of 13 psi at 20 degrees celsius The molecular weight of air is 29 grams?
n=PV/RT The answer does not depend on the molecular weight of air (Avogadro's principle). n=1.2 moles
What is the molecular weight of vanillideneacetone?
The molecular weight of vanillideneacetone is 192.214g/mol.
What is the molecular weight of sodium nitrate?
Sodium nitrate molecular weight is 84,9947.
What is Sodium nitrate molecular weight?
Sodium nitrate molecular weight is 84,9947.
How do you calculate density from molecular weight?
the given molecular weight is divided by volume
