The picture shows a spoonful of salt being added to a glass of water. What physical property of the salt is being demonstrated?A
.
A.
solubility
B.
density
C.
boiling point
D.
melting point
A.
solubility
B.
density
C.
boiling point
D.
melting point
2 answers:
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Answer:
There are 4 tryptophans in the protein.
Explanation:
According to question, protein contains one tyrosine residue and say x number of tryptophans.
Concentration of protein solution = 1.0 micromolar =
Molar absorptivity of a protein solution :
Length of the cuvette = l = 1.0 cm
Absorbance of protein solution at 280 nm = A = 0.024
( Beer-Lambert's law)
Solving for x :
x = 4
There are 4 tryptophans in the protein.