PHYSICAL CHEMISTRY-WEBASSIGN
PHYSICAL CHEMISTRY-WEBASSIGN
11th Edition
ISBN: 9780357087411
Author: ATKINS
Publisher: CENGAGE L
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Chapter 4, Problem 4A.1P

(a)

Interpretation Introduction

Interpretation: The phases present in a sample of CO2 which is heated steadily from 100K at constant pressure of 1atm have to be described.

Concept introduction: The physical state of a substance under different conditions of temperature and pressure is represented by a phase diagram which is drawn by taking pressure on the y axis and temperature on the x axis.  One component system is a system involving one pure substance in different phases.  The system is defined by a set of variables and the minimum number of variable used to define the system is called its degree of freedom.

(b)

Interpretation Introduction

Interpretation: The phases present as a sample of CO2 is heated steadily from 100K at constant pressure of 70atm have to be described.

Concept introduction: The physical state of a substance under different conditions of temperature and pressure is represented by a phase diagram which is drawn by taking pressure on the y axis and temperature on the x axis.  One component system is a system involving one pure substance in different phases.  The system is defined by a set of variables and the minimum number of variable used to define the system is called its degree of freedom.

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Done 11:14 ⚫ worksheets.beyondlabz.com 5 (a). Using the peak information you listed in the tables for both structures, assign each peak to that portion of the structure that produces the peak in the NMR spectrum. Draw this diagram on your own sheet of paper and attach the sketch of your drawing to this question. Question 6 5 (b). Using the peak information you listed in the tables for both structures, assign each peak to that portion of the structure that produces the peak in the NMR spectrum. Draw this diagram on your own sheet of paper and attach the sketch of your drawing to this question. Question 7 6. Are there any differences between the spectra you obtained in Beyond Labz and the predicted spectra? If so, what were the differences? <
2. Predict the NMR spectra for each of these two compounds by listing, in the NMR tables below, the chemical shift, the splitting, and the number of hydrogens associated with each predicted peak. Sort the peaks from largest chemical shift to lowest. **Not all slots must be filled** Peak Chemical Shift (d) 5.7 1 Multiplicity multiplate .......... 5.04 double of doublet 2 4.98 double of doublet 3 4.05 doublet of quartet 4 5 LO 3.80 quartet 1.3 doublet 6 Peak Chemical Shift (d) Multiplicity
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