BuyFind

Principles of Instrumental Analysis

7th Edition
Douglas A. Skoog + 2 others
Publisher: Cengage Learning
ISBN: 9781305577213
BuyFind

Principles of Instrumental Analysis

7th Edition
Douglas A. Skoog + 2 others
Publisher: Cengage Learning
ISBN: 9781305577213

Solutions

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 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.

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