The variation of concentration of C O 2 in a large city should be predicted on the basis of given average concentration value of carbon dioxide. Concept introduction: Carbon dioxide is one of the major anthropogenic greenhouse gases and its concentration on a large scale, all over the world makes harmful effect to the earth and to the living systems on earth. Its concentration varies in accordance with the changes in season and climate in a particular area. Large increase in the number of automobiles, also enhance the concentration of carbon dioxide in a great extent. Parts per million (ppm): It is one of the important concentration expressing terms, and which describes grams of solute per million grams of total solutions. ppm = Mass of solute Mass of solution ×10 6

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• Part II. a) Elucidate The structure of compound c w/ molecular formula C10 11202 and the following data below: • IR spectra % TRANSMITTANCE 1002.5 90 80 70 60 50 40 30 20 10 0 4000 3600 3200 2800 2400 2000 1800 1600 • Information from 'HAMR MICRONS 8 9 10 11 14 15 16 19 25 1400 WAVENUMBERS (CM-1) 1200 1000 800 600 400 peak 8 ppm Integration multiplicity a 2.1 1.5 (3H) Singlet b 3.6 1 (2H) singlet с 3.8 1.5 (3H) Singlet d 6.8 1(2H) doublet 7.1 1(2H) doublet Information from 13C-nmR Normal carbon 29ppm Dept 135 Dept -90 + NO peak NO peak 50 ppm 55 ppm + NO peak 114 ppm t 126 ppm No peak NO peak 130 ppm t + 159 ppm No peak NO peak 207 ppm по реак NO peak

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Question

Chapter 20, Problem 4PS

Interpretation Introduction

Interpretation:

The variation of concentration of CO2 in a large city should be predicted on the basis of given average concentration value of carbon dioxide.

Concept introduction:

Carbon dioxide is one of the major anthropogenic greenhouse gases and its concentration on a large scale, all over the world makes harmful effect to the earth and to the living systems on earth. Its concentration varies in accordance with the changes in season and climate in a particular area.

Large increase in the number of automobiles, also enhance the concentration of carbon dioxide in a great extent.

Parts per million (ppm): It is one of the important concentration expressing terms, and which describes grams of solute per million grams of total solutions.

ppm = Mass of soluteMass of solution ×106

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• Part II. a) Elucidate The structure of compound c w/ molecular formula C10 11202 and the following data below: • IR spectra % TRANSMITTANCE 1002.5 90 80 70 60 50 40 30 20 10 0 4000 3600 3200 2800 2400 2000 1800 1600 • Information from 'HAMR MICRONS 8 9 10 11 14 15 16 19 25 1400 WAVENUMBERS (CM-1) 1200 1000 800 600 400 peak 8 ppm Integration multiplicity a 2.1 1.5 (3H) Singlet b 3.6 1 (2H) singlet с 3.8 1.5 (3H) Singlet d 6.8 1(2H) doublet 7.1 1(2H) doublet Information from 13C-nmR Normal carbon 29ppm Dept 135 Dept -90 + NO peak NO peak 50 ppm 55 ppm + NO peak 114 ppm t 126 ppm No peak NO peak 130 ppm t + 159 ppm No peak NO peak 207 ppm по реак NO peak

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