Principles of Instrumental Analysis
Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
Question
Book Icon
Chapter 8, Problem 8.1QAP
Interpretation Introduction

Interpretation:

To explain the reason for the broader spectrum of CaOH compared to the sodium emission line.

Concept introduction:

Spectral lines help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrow frequency range nearby.

Expert Solution & Answer
Check Mark

Answer to Problem 8.1QAP

CaOH spectrum is broader owing to the transitions among the vibrational and rotational states whereas in the case of sodium, the transitions take place among electronic energy states.

Explanation of Solution

CaOH or calcium hydroxide is an ionic molecule where vibrational and rotational levels are possible. Owing to the transitions among the vibrational, rotational states, there exists broad line spectra in case of the CaOH molecule.

In the case of sodium, it is not possible to have the transitions among the vibrational, rotational states. They take place among electronic energy states thus, resulting in a line spectrum.

Conclusion

CaOH spectrum is broader owing to the transitions among the vibrational and rotational states which is not possible in sodium.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
7-8. Indicate the number of unpaired electrons present in Cadmium and Iron.
Bucks McGee, after being poisoned, is currently being treated in the hospital with an antidote- the chemical Fe-(CN)18. The compound is so intensely coloured that even a small amount of it makes for a black or dark blue suspension. Given that this antidote has never before been administered at the hospital, none of the doctors or nurses have experience with it. There is one very old bottle of Fe-(CN)18 pills in the medicine store-room, but the label is worn and the units are in the old, archaic British Apothecaries' system which has unusual units like drachms, scruples, grains, and mites: 453.6 grams (g) = 1 pound (Ib) = 12 ounces (3) = 96 drachms (3) = 288 scruples (3) = 5760 grains (gr) = 115200 mites (m)
25. How would you set up and solve concentration problems like this which involve absorbance?
Knowledge Booster
Background pattern image
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Text book image
Introduction to General, Organic and Biochemistry
Chemistry
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Cengage Learning
Text book image
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning