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Air is a mixture of gases, primarily composed of nitrogen (about 78%), oxygen (about 21%), and smaller amounts of other gases like argon and carbon dioxide. The size of air molecules varies, but individual gas molecules like nitrogen (N₂) and oxygen (O₂) have molecular diameters on the order of 0.1 nanometers (1 angstrom). The average molecular weight of air is approximately 29 grams per mole, reflecting the composition of these gases.
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What is the molecular size of phenol?
please i want to know the volume and area of phenol molecule
What is size of DMSO molecule?
The molecular formula of dimethyl sulfoxide (DMSO) is C2H6OS. The molecular weight of this molecule is approximately 78.13 grams per mole. In terms of size, DMSO has a molecular diameter of about 6.9 angstroms.
Why molecular weight of air is 28.9?
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)
Is ammonia lighter than air and why?
Yes, ammonia (NH₃) is lighter than air. The molecular weight of ammonia is approximately 17 g/mol, while the average molecular weight of air is about 29 g/mol. Because of this lower molecular weight, ammonia is less dense than air, causing it to rise when released into the atmosphere.
What is the basis of molecular sieve chromatography?
The purification in molecular sieve chromatography is dependent on the size of the molecules. The small molecules will enter into pores of gel while large molecules will be excluded from the pores.
What is average molecular weight of air?
The average molecular weight of dry air is 28.96 g/gmol.
What is the molecular weight of air in lb lbmol?
The molecular weight of air is approximately 28.97 lb/lbmol.
What is the molecular weight of air in lb/lbmol?
The molecular weight of air is approximately 28.97 lb/lbmol.
What is the molecular size of phenol?
please i want to know the volume and area of phenol molecule
What is the separation of materials by molecular properties such as size?
You think probable to the separation with molecular sieves.
What is the molecular weight of air in pounds per pound-mole?
The molecular weight of air is approximately 28.97 pounds per pound-mole.
What is size of DMSO molecule?
The molecular formula of dimethyl sulfoxide (DMSO) is C2H6OS. The molecular weight of this molecule is approximately 78.13 grams per mole. In terms of size, DMSO has a molecular diameter of about 6.9 angstroms.
Why molecular weight of air is 28.9?
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)
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.
Air temperature is a measure of the?
a measure of molecular motion
Is ammonia lighter than air and why?
Yes, ammonia (NH₃) is lighter than air. The molecular weight of ammonia is approximately 17 g/mol, while the average molecular weight of air is about 29 g/mol. Because of this lower molecular weight, ammonia is less dense than air, causing it to rise when released into the atmosphere.
Why do you need a molecular weight ruler alongside your samples during electrophoresis?
A molecular weight ruler uses a sample of fragments of a known size (known as a molecular weight marker) to be placed alongside the experimental and control samples. It helps compare the migration distance of the experimental fragments to the migrating distance of the fragments of a known size that make up the molecular weight marker. Then the scientist can calculate an approx. size of their experimental samples.
