(a) Interpretation: The materials as well as instrument components required for making an instrument used to investigate the absorption bands in the given range of wavelength. Concept introduction: Spectral lines help in identifying the atoms and molecules. These are result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Question

(i) The detection of Mn by graphite furnace atomic absorption spectrometry (GFAAS) is sensitive to the presence of aluminium ions Al3+ which may form refractory compounds such as MnAl2O4. Comment on the possible impact of this compound on the measurements and what action may be taken to minimize this. (ii) Write a brief note on the best practice for the preparation of a calibration curve. (iii) Atomic absorption spectroscopy (AAS) is a powerful technique for the analysis of trace amounts of metals. Describe the two common atomic absorption methods used in the lab with reference to their comparative strengths and weaknesses.

Answer 1

Question

Chapter 7, Problem 7.15QAP

Interpretation Introduction

(a)

Interpretation:

The materials as well as instrument components required for making an instrument used to investigate the absorption bands in the given range of wavelength.

Concept introduction:

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

Interpretation Introduction

(b)

Interpretation:

The materials as well as instrument components required for making an instrument used to obtain the absorption spectra in far IR − 20 to 50 µm needs to be suggested.

Concept introduction:

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

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(c)

Interpretation:

The materials as well as instrument components required for making an instrument used to make a portable device to determine the iron content in natural water depending on absorption of radiation by red Fe(SCN)²⁺ complex needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(d)

Interpretation:

The materials as well as instrument components required for determination of nitrobenzene in air samples depending on absorption peak at 11.8µm needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(e)

Interpretation:

The materials as well as instrument components required for making an instrument used to determine the wavelength of flame emission lines for metallic elements in 200 nm to 780 nm region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(f)

Interpretation:

The materials as well as instrument components required for making an instrument used for spectroscopic studies in vacuum UV region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(g)

Interpretation:

The materials as well as instrument components required for making an instrument used for spectroscopic studies in the near IR region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

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(i) The detection of Mn by graphite furnace atomic absorption spectrometry (GFAAS) is sensitive to the presence of aluminium ions Al3+ which may form refractory compounds such as MnAl2O4. Comment on the possible impact of this compound on the measurements and what action may be taken to minimize this. (ii) Write a brief note on the best practice for the preparation of a calibration curve. (iii) Atomic absorption spectroscopy (AAS) is a powerful technique for the analysis of trace amounts of metals. Describe the two common atomic absorption methods used in the lab with reference to their comparative strengths and weaknesses.

Atomic Spectroscopy (a) In terms of spectral shape, how are atomic spectra different from molecular spectra? What is the source of this difference? (b) Describe the decision-making process for picking a line for atomic emission analysis of a given analyte. (c) For quality assurance, spike recovery is not sufficient to establish confidence in an analytical procedure. Explain this statement. What should be done instead to demonstrate satisfactory performance of an instrumental method (including elemental analysis). (d) Find a literature example of atomic spectroscopy used for elemental analysis. State the operating conditions with sufficient detail to reproduce the analysis; Please answer very soon will give rating surely All questions complete Answer needed Please help me

(5) A sample of sodium phosphate is dissolved in water to give 100.00 mL of solution (Solution A). Then this solution is diluted 5 times to give the final solution (Solution B). Solution B is Known to contain 3.920 x 1022 number of PO43- ions, which has an absorption peak at 460 nm and absorbance value of 0.355 in a 1.000 cm cuvette. (i) Calculate the molar absorptivity of Solution B. (ii) What mass of sodium phosphate (MM 163.94 g/mol) dissolved in Solution A.

Answer 2

Question

Chapter 7, Problem 7.15QAP

Interpretation Introduction

(a)

Interpretation:

The materials as well as instrument components required for making an instrument used to investigate the absorption bands in the given range of wavelength.

Concept introduction:

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

Interpretation Introduction

(b)

Interpretation:

The materials as well as instrument components required for making an instrument used to obtain the absorption spectra in far IR − 20 to 50 µm needs to be suggested.

Concept introduction:

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

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(c)

Interpretation:

The materials as well as instrument components required for making an instrument used to make a portable device to determine the iron content in natural water depending on absorption of radiation by red Fe(SCN)²⁺ complex needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(d)

Interpretation:

The materials as well as instrument components required for determination of nitrobenzene in air samples depending on absorption peak at 11.8µm needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(e)

Interpretation:

The materials as well as instrument components required for making an instrument used to determine the wavelength of flame emission lines for metallic elements in 200 nm to 780 nm region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(f)

Interpretation:

The materials as well as instrument components required for making an instrument used for spectroscopic studies in vacuum UV region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(g)

Interpretation:

The materials as well as instrument components required for making an instrument used for spectroscopic studies in the near IR region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

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Answer 3

Question

Chapter 7, Problem 7.15QAP

Interpretation Introduction

(a)

Interpretation:

The materials as well as instrument components required for making an instrument used to investigate the absorption bands in the given range of wavelength.

Concept introduction:

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

Interpretation Introduction

(b)

Interpretation:

The materials as well as instrument components required for making an instrument used to obtain the absorption spectra in far IR − 20 to 50 µm needs to be suggested.

Concept introduction:

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

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(c)

Interpretation:

The materials as well as instrument components required for making an instrument used to make a portable device to determine the iron content in natural water depending on absorption of radiation by red Fe(SCN)²⁺ complex needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(d)

Interpretation:

The materials as well as instrument components required for determination of nitrobenzene in air samples depending on absorption peak at 11.8µm needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(e)

Interpretation:

The materials as well as instrument components required for making an instrument used to determine the wavelength of flame emission lines for metallic elements in 200 nm to 780 nm region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(f)

Interpretation:

The materials as well as instrument components required for making an instrument used for spectroscopic studies in vacuum UV region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(g)

Interpretation:

The materials as well as instrument components required for making an instrument used for spectroscopic studies in the near IR region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

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Answer 4

Question

Chapter 7, Problem 7.15QAP

Interpretation Introduction

(a)

Interpretation:

The materials as well as instrument components required for making an instrument used to investigate the absorption bands in the given range of wavelength.

Concept introduction:

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

Interpretation Introduction

(b)

Interpretation:

The materials as well as instrument components required for making an instrument used to obtain the absorption spectra in far IR − 20 to 50 µm needs to be suggested.

Concept introduction:

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

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(c)

Interpretation:

The materials as well as instrument components required for making an instrument used to make a portable device to determine the iron content in natural water depending on absorption of radiation by red Fe(SCN)²⁺ complex needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(d)

Interpretation:

The materials as well as instrument components required for determination of nitrobenzene in air samples depending on absorption peak at 11.8µm needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(e)

Interpretation:

The materials as well as instrument components required for making an instrument used to determine the wavelength of flame emission lines for metallic elements in 200 nm to 780 nm region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(f)

Interpretation:

The materials as well as instrument components required for making an instrument used for spectroscopic studies in vacuum UV region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(g)

Interpretation:

The materials as well as instrument components required for making an instrument used for spectroscopic studies in the near IR region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

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Answer 5

Chapter 7, Problem 7.15QAP

Interpretation Introduction

(a)

Interpretation:

The materials as well as instrument components required for making an instrument used to investigate the absorption bands in the given range of wavelength.

Concept introduction:

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

Interpretation Introduction

(b)

Interpretation:

The materials as well as instrument components required for making an instrument used to obtain the absorption spectra in far IR − 20 to 50 µm needs to be suggested.

Concept introduction:

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

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(c)

Interpretation:

The materials as well as instrument components required for making an instrument used to make a portable device to determine the iron content in natural water depending on absorption of radiation by red Fe(SCN)²⁺ complex needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(d)

Interpretation:

The materials as well as instrument components required for determination of nitrobenzene in air samples depending on absorption peak at 11.8µm needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(e)

Interpretation:

The materials as well as instrument components required for making an instrument used to determine the wavelength of flame emission lines for metallic elements in 200 nm to 780 nm region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(f)

Interpretation:

The materials as well as instrument components required for making an instrument used for spectroscopic studies in vacuum UV region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Interpretation Introduction

(g)

Interpretation:

The materials as well as instrument components required for making an instrument used for spectroscopic studies in the near IR region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Answer 6

Chapter 7, Problem 7.15QAP

Interpretation Introduction

(a)

Interpretation:

The materials as well as instrument components required for making an instrument used to investigate the absorption bands in the given range of wavelength.

Concept introduction:

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

Answer 7

Chapter 7, Problem 7.15QAP

Interpretation Introduction

(a)

Interpretation:

The materials as well as instrument components required for making an instrument used to investigate the absorption bands in the given range of wavelength.

Concept introduction:

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

Answer 8

Interpretation Introduction

(b)

Interpretation:

The materials as well as instrument components required for making an instrument used to obtain the absorption spectra in far IR − 20 to 50 µm needs to be suggested.

Concept introduction:

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

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The materials as well as instrument components required for making an instrument used to obtain the absorption spectra in far IR − 20 to 50 µm needs to be suggested.

Concept introduction:

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

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Answer 10

Interpretation Introduction

(c)

Interpretation:

The materials as well as instrument components required for making an instrument used to make a portable device to determine the iron content in natural water depending on absorption of radiation by red Fe(SCN)²⁺ complex needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Answer 11

Interpretation Introduction

(c)

Interpretation:

The materials as well as instrument components required for making an instrument used to make a portable device to determine the iron content in natural water depending on absorption of radiation by red Fe(SCN)²⁺ complex needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Answer 12

Interpretation Introduction

(d)

Interpretation:

The materials as well as instrument components required for determination of nitrobenzene in air samples depending on absorption peak at 11.8µm needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Answer 13

Interpretation Introduction

(d)

Interpretation:

The materials as well as instrument components required for determination of nitrobenzene in air samples depending on absorption peak at 11.8µm needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Answer 14

Interpretation Introduction

(e)

Interpretation:

The materials as well as instrument components required for making an instrument used to determine the wavelength of flame emission lines for metallic elements in 200 nm to 780 nm region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Answer 15

Interpretation Introduction

(e)

Interpretation:

The materials as well as instrument components required for making an instrument used to determine the wavelength of flame emission lines for metallic elements in 200 nm to 780 nm region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Answer 16

Interpretation Introduction

(f)

Interpretation:

The materials as well as instrument components required for making an instrument used for spectroscopic studies in vacuum UV region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Answer 17

Interpretation Introduction

(f)

Interpretation:

The materials as well as instrument components required for making an instrument used for spectroscopic studies in vacuum UV region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Answer 18

Interpretation Introduction

(g)

Interpretation:

The materials as well as instrument components required for making an instrument used for spectroscopic studies in the near IR region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Answer 19

Interpretation Introduction

(g)

Interpretation:

The materials as well as instrument components required for making an instrument used for spectroscopic studies in the near IR region needs to be suggested.

Concept introduction:

Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.

Spectral region consists of different wavelengths which are distinguished based on the sources used to produce them and detect the different wavelengths.

Answer 20

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Ch. 7 - Prob. 7.1QAP Ch. 7 - Prob. 7.2QAP Ch. 7 - The Wien displacement law states that the...Ch. 7 - Prob. 7.4QAP Ch. 7 - Prob. 7.5QAP Ch. 7 - Describe the differences and similarities between...Ch. 7 - Prob. 7.7QAP Ch. 7 - Prob. 7.8QAP Ch. 7 - Prob. 7.9QAP Ch. 7 - Prob. 7.10QAP

Solution Summary: The author explains the materials and instrument components required for making an instrument used to investigate the absorption bands in the given wavelength range.

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