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In which property allow the separation of a sample of sand and seawater by filtration?
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Why is iodine considered a trace element in seawater?
A trace element is considered is a specific element that contains less than 100 parts per million in a sample. In this case, the sample is seawater. According to my understanding, the presence of iodine is very limited in seawater. There is only 0.05 parts per million of iodine in seawater. As such, iodine is considered a trace element in seawater.
What property depends on the amount of matter in the sample?
Depends on what the sample is and how much of it you have.
Is temperature an extensive or intensive property?
An intensive physical property does not depend on the size of the sample. An example of an intensive physical property is density. An extensive physical property does depend on the size of the sample, such as mass and volume.
Why mass is an example of extrinsic property?
Mass is an example of an extrinsic property, because an extrinsic property is one that varies with and depends on the size and amount of the sample. Obviously, the more of the sample you have, the greater will be the mass. Thus, mass is an extrinsic property. Compare this to density. It doesn't matter how much of the sample you have, the density will be the same. Density is an intrinsic property.
What are Nansen bottles used for?
Nansen bottles are used to obtain a sample of seawater at a certain depth.
Why for gel filtration chromatography the smaller the sample volume the better the separation?
in gel filtration the volume of eluent is what moves compounds in and out of the pores in the matrix.A large volume of sample means the sample components will not be introduced to the matrix as a tight "plug" and the sample will slowly spread into the matrix meaning the beginning and the ending of the sample will be far apart meaning the sample will be spread out over the gel matrix resulting in poor resolution of that component from any other.
Could you use filtration to seperatesalt from water in a sample of seawater?
Yes, some filters allow this. Some pressure must be aplied, to counteract the osmotic pressure. For more information, do some reading on reverse osmosis.
Seawater is not a substance because?
it's composition may be different from sample to sample.
Why is iodine considered a trace element in seawater?
A trace element is considered is a specific element that contains less than 100 parts per million in a sample. In this case, the sample is seawater. According to my understanding, the presence of iodine is very limited in seawater. There is only 0.05 parts per million of iodine in seawater. As such, iodine is considered a trace element in seawater.
What is The best way to remove the mud from a sample of lake water?
Filtration
What property depends on the amount of matter in the sample?
Depends on what the sample is and how much of it you have.
Is there ninety elements extracted from seawater?
In any given sample of seawater, you will probably find all 90 elements, but some of them are going to be in extremely minute quantities.
What is the separation techniques for sublimation?
The technique is simple: heating of the sample.
Why cant mass used as a property to identify a sample of matter?
Mass is an extensive property, which depends only on the amount of matter in the sample, not on the composition of the sample.
Sample of mixture that can be separated by distillation?
A type of Mixture in which Solute and Solvent Both are liquid can be separated by Distillation. It is done on the basis of their boiling point and if boiling point is below 25 C then fractional distillation is done.
A sample of seawater weighs 158 g and has a volume of 156 mL What is the density?
It is 1.0128 g/mL.
How will identifying if a property is chemical or physical?
A physical property can be observed without changing the sample. Chemical properties requires you to change the sample.
