What molecules correspond to IR spectra C and D? Briefly justify (only one molecule per spectrum). * TRANSMITTANCE20404889* TRANSMITTANCE2048Spectrum C100400035b0Spectrum D8910035003508завеliquid sample between salt plates2837capillary film between salt plates2674BELI258920031580HAVENUMBERS1853143725002003150016гаVAVENUEBERS1285-BALL1000Copyright 1994630.0 Molecule 1NH2Molecule 3H₂C.CH3CH3°Molecule 5HOCH3Molecule 2Molecule 4Molecule 6OHMolecule 7Molecule 8OHNH2OCH3Molecule 9OHCH3Molecule 10

Answered: Image /qna-images/answer/3814cc21-2386-48a1-bb7e-4dbbb9053196.jpg

Answered: * TRANSMITTANCE 20 40 4889 *…

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter31: Introduction To Analytical Separations

Section: Chapter Questions

Problem 31.5QAP

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Please create a caption for this table. Solution NaCl Conc. (%) Osmolality (mOsm) % transmittance Absorbance % hemolysis % crenation C distilled 0 0 0.001029 4.987584625 100 0.03354 1 0.177179111 54.61 0.001551 4.809388202 96.42720001 0.05837 2 0.297126222 91.58 0.01012 3.994819487 80.09527231 0.08444 3 0.442542222 136.4 3.849 1.414652089 28.3634704 0.134 4 0.590164444 181.9 64.8 0.188424994 3.777880643 0.2125 5 0.74752 230.4 95.64 0.019360433 0.388172513 0.3368 6 0.89644 276.3 99.56 0.001915112 0.038397585 0.5336 7 1.095648889 337.7 99.98 8.68676E-05 0.001741676 0.9834 8 1.336711111 412 100 0 0 2.1 9 1.755568889 541.1 100 0 0 7.9 10 2.674395556 824.3 100 0 0 57.83 11 4.490211111 1384 100 0 0 99.72
Sel Absorbance S Verify your molar absorptivity value. Did you report your data to the correct number of significant figures? Analytical wavelength Analytical wavelength for blue dye (nm) Calibration curve Solution 1 2 3 4 5 Dye concentration (μM) 15.20 7.51 Unknown solution 3.74 1.89 1.01 Molar absorptivity (μM ¹cm-¹) Absorbance Concentration of unknown blue dye (µM) 629 Absorbance 0.756 0.432 0.259 0.175 0.144 0.083 How to calculate concentration from absorbance S A d tra 01
ml 500 380mL 450 400 350 365mL 370mL None of these 375mL 353mL Line of sight
Column Chromatography Alumina Chromatography Mixture 9:1 Hexanes:Ether 8:2 Hexanes:Ether 1:1 Hexanes:Acetone Amount Used 3.962 g 0.143 g 9.50 mL 9.50 mL 11.00 mL Additional Observations (Color, etc.) BIU X₂ X² → BI IU X₂ X² → BI IU X₂ X² → BI IU X₂ X² → BIU X₂ X² →
Which of the following can be used as mobile phase in chromatography? A) Нехаne B) Sand C) Acetyl Ferrocene D) Alumina OB OD Ferrocene and acetyl ferrocene can be separated by column chromatography. - Which physical property is underlying concept for this separation process? A) Boiling point B) Melting point C) Relative polarity D) Refractive index O A ов D.
Fill out the CNMR table using the CNMR graph
In have narrow peaks are said to chromatography, a) a large plate height (H) b) a small plate height (H) c) a small number of theoretical plates (N)
observation/inference
Use least square regression to determine the best straight line and slope; compare the slope from 5 & 6. Concentration (M) Absorbance (no units) 0.10 0.09 0.20 0.14 0.30 0.19 0.40 0.27 0.50 0.30 0.60 0.34 0.70 0.37
Table 2: Absorbance Values of Standards and Unknowns. Sample Blank Standard Solution 1 Standard Solution 2 Standard Solution 3 Standard Solution 4 Standard Solution 5 Water Sample 1 Water Sample 2 Phosphate Concentration (in ppm) Y17 0 ppm 0.02 ppm 0.04 ppm 0.08 ppm 0.16 ppm 0.32 ppm Freeman Lake 0.001 0.325 0.292 0.413 0.315 0.039 0.054 0.049 Absorbance at 2= 690 nm Calculations: 1. Construct a phosphate standard curve in Excel by plotting concentration (in ppm) on your x-axis and Absorbance (unitless) on your y-axis for your known solutions. Label the axes on the graph and provide the curve with a title. Use a linear trendline to generate a best fit line to your data. Label the graph with the equation and the R" value. Insert your labeled graph in the space below. X
What types of samples can be analyzed by IR?How are substances that are opaque (nottransparent) handled using this technique?
Molar concentration of the dye stock solution: 2.52e-5 mol/L Operating Wavelength: 630 nm Solutions(Dilutions) Absorbance (A)(a.u.) 1 0.073 2 0.118 3 0.258 4 0.477 Using linear regression determine the absorbance/concentration relationship for the dye. [dye] =_____ x A

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