Biphenyl will have a higher R value than the Methyl Orange.
Explanation:
Biphenyl is a aromatic hydrocarbon and it is a nonpolar molecule.
Methyl Orange is a organic compound with a -SO₃⁻Na⁺ polar functional group which will induce a high polarity in the compound.
You may find the chemical structures of both molecules in the attached picture.
Column chromatography, which use as stationary phase silica gel, is a good technique for separation of the Methyl Orange from Biphenyl.
Being a non-polar molecule, Biphenyl will have a higher R value than the Methyl Orange.
To separate them you use a appropriate solvent as eluent, as exemple chloroform, and Biphenyl will elute first from the column and after that, as a separate phase, Methyl Orange will elute thus separating them.
Learn more about:
chromatography
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Answer:
~0.0004
Explanation:
n=0.072/(56+(35.5*3))=0.072/162.5~~0.004
The answer is B red blood cells. The other three are part of our immune system to defense for infectious disease. While red blood cells are responsible for transport oxygen from lung to other place in our body.
1.079*10^5 kilometers per hour
<span>Iron Oxide</span><span> Fe2O3 = 5 atoms.</span>