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
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Chapter 13, Problem 13.27QAP
Interpretation Introduction

(a)

Interpretation:

The absorbance that minimizes the concentration uncertainty is to be stated.

Concept introduction:

The molecular absorption spectroscopy is the device that measures the transmittance and absorbance of the solution in the transparent container. The transparent container or cell having path length b.

Beer’s law shows the linear relation between the absorbance and concentration of the observing analyte.

A=logT=logP0P=εbc

Here, A is the absorbance, T is the transmittance, ε is the molar absorptivity, c is the concentration, P0 is the incident power and P is the transmitted power after passing through the sample.

Interpretation Introduction

(b)

Interpretation:

The expression for transmittance and absorbance that minimizes the concentration uncertainty is to be stated.

Concept introduction:

The molecular absorption spectroscopy is the device that measures the transmittance and absorbance of the solution in the transparent container. The transparent container or cell having path length b.

Beer’s law shows the linear relation between the absorbance and concentration of the observing analyte.

A=logT=logP0P=εbc

Here, A is the absorbance, T is the transmittance, ε is the molar absorptivity, c is the concentration, P0 is the incident power and P is the transmitted power after passing through the sample.

Interpretation Introduction

(c)

Interpretation:

Whether the spectrophotometer was operating under Case I, Case II or Case III conditions is to be stated.

Concept introduction:

The molecular absorption spectroscopy is the device that measures the transmittance and absorbance of the solution in the transparent container. The transparent container or cell having path length b.

Beer’s law shows the linear relation between the absorbance and concentration of the observing analyte.

A=logT=logP0P=εbc

Here, A is the absorbance, T is the transmittance, ε is the molar absorptivity, c is the concentration, P0 is the incident power and P is the transmitted power after passing through the sample.

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