Concept explainers
(a)
Interpretation:
The formation constant and the difference in molar absorptivities at 470 nm should be determined using linear regression and the Benesi-Hildebrand equation.
Concept introduction:
The Benesi-Hildebrand equation is:
b − length of the solution light passes through
ΔA − difference between absorbance with and without the ligand present
Δe − difference of the molar absorptivities of complex and metal ion.
Kf − formation constant
CM − concentration of metal ion
CL − concentration of ligand.
(b)
Interpretation:
The values of Kf and Δe should be determined using non-linear regression.
Concept introduction:
b − length of the solution light passes through
ΔA − difference between absorbance with and without the ligand present
Δe − difference of the molar absorptivities of complex and metal ion.
Kf − formation constant
CM − concentration of metal ion
CL − concentration of ligand.
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Principles of Instrumental Analysis
- A DEPT NMR spectrum is shown for a molecule with the molecular formula of C5H12O. Draw the structure that best fits this data. 200 180 160 140 120 100 一盆 00 40 8- 20 ppm 0 Qarrow_forwardDon't used hand raitingarrow_forwardShown below is the major resonance structure for a molecule. Draw the second best resonance structure of the molecule. Include all non-zero formal charges. H. H. +N=C H H H Cl: Click and drag to start drawing a structure. : ? g B S olo Ar B Karrow_forward
- Don't used hand raitingarrow_forwardS Shown below is the major resonance structure for a molecule. Draw the second best resonance structure of the molecule. Include all non-zero formal charges. H H = HIN: H C. :0 H /\ H H Click and drag to start drawing a structure. ×arrow_forwardPlease help me figure out these calculation and what should be plotted. These are notes for my chemistry class.arrow_forward
- Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning