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Can dissolved particles be removed by filter?
Not if they are dissolved - if they are then they're of molecular size.
What is molecular exclusion chromatography?
molecular exclusion chromatography is the exclusion or separation of protein particles based on their molecular size. Bhubanyu Basu
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)
What is the molecular size of phenol?
please i want to know the volume and area of phenol molecule
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.
Can dissolved particles be removed by filter?
Not if they are dissolved - if they are then they're of molecular size.
What is average molecular weight of air?
The average molecular weight of dry air is 28.96 g/gmol.
What is the separation of materials by molecular properties such as size?
You think probable to the separation with molecular sieves.
What is molecular exclusion chromatography?
molecular exclusion chromatography is the exclusion or separation of protein particles based on their molecular size. Bhubanyu Basu
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.
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)
Air temperature is a measure of the?
a measure of molecular motion
How does molecule size affect melting point?
Intermolecular forces increase as molecular size increases, thus the bigger the molecular size, the bigger the molecular mass, the stronger the intermolecular forces, the more energy required to break the bonds between the molecule, thus a higher melting/boling point.
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
Does nitrogen weigh more than air?
No. Nitrogen is slightly less dens than air. The density of a gas is directly proportional to its molecular mass. Dry air is 78% nitrogen, 21% oxygen. Nitrogen has a molecular mass of 28 AMU. Oxygen has a molecular mass of 32 AMU. This makes air just a bit denser than pure nitrogen.
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.
If enzymes are bigger or DNA is bigger in molecular size?
Enzymes are smaller than the DNA they process in molecular size. This is because the DNA is a very long string of parts, whereas the enzyme is a single piece.
