Suppose that the C=O group in a peptide bond can be regarded as isolated from the rest of the molecule. Given that the force con
stant of the bond in a carbonyl group is 908 N m−1 , calculate the vibrational frequency of (a) 12C=16O and (b) 13C=16O.
1 answer:
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Calcium chloride forms an ionic compound with a regularly arranged lattice of oppositely charged ions.
The Na+ and Cl- ions are held together by strong electrostatic forces.
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The Na+ and Cl- ions are held together by strong electrostatic forces.
Hope that helps
Answer:
see explanation below
Explanation:
Question is incomplete, so in picture 1, you have a sample of this question with the missing data.
Now, in general terms, the absorbance of a substance can be calculated using the beer's law which is the following:
A = εlc
Where:
ε: molar absortivity
l: distance of the light in solution
c: concentration of solution
However, in this case, we have a plot line and a equation for this plot, so all we have to do is replace the given data into the equation and solve for x, which is the concentration.
the equation according to the plot is:
A = 15200c - 0.018
So solving for C for an absorbance of 0.25 is:
0.25 = 15200c - 0.018
0.25 + 0.018 = 15200c
0.268 = 15200c
c = 0.268/15200
c = 1.76x10⁻⁵ M
