(a) Interpretation: Given absorbance value should be converted into percent transmittance. Concept introduction: Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium. T= P P o Where, P o = power of incident beam P = power of transmitted beam Percent Transmittance (T%) = P P o × 100 % The relationship between absorbance ( A ) and Transmittance (T) is as follows; A = − log(T)

Question

(d) The Beer-Lambert law states that the absorbance (A) of light by a solution in a cuvette is given by: 10 A = In == ECL where lo is the incident light intensity, is the transmitted light intensity, e is the molar absorptivity, c is the concentration of the solution, and L is the path length of the cuvette. (1) Light with a wavelength of 800 nm is passed through a cuvette containing a solution of Coumarin dye. After passing through the cuvette, the light intensity was reduced to 10% of its initial value. What is the absorbance of the solution of Coumarin dye? (ii) The concentration of the Coumarin dye is 0.004 mol dm3, and the cuvette has a path length of 1 cm. What is the molar absorptivity of Coumarin dye at 800 nm, in units of m² mot¹? (IT) The molar absorptivity of Coumarin dye at 400 nm is three times larger than at 800 nm. How would the absorbance of the solution change, when measured with 400 nm light rather than 800 nm light?

Answer 1

Question

Chapter 6, Problem 6.14QAP

Interpretation Introduction

(a)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Interpretation Introduction

(b)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Interpretation Introduction

(c)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Interpretation Introduction

(d)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

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(d) The Beer-Lambert law states that the absorbance (A) of light by a solution in a cuvette is given by: 10 A = In == ECL where lo is the incident light intensity, is the transmitted light intensity, e is the molar absorptivity, c is the concentration of the solution, and L is the path length of the cuvette. (1) Light with a wavelength of 800 nm is passed through a cuvette containing a solution of Coumarin dye. After passing through the cuvette, the light intensity was reduced to 10% of its initial value. What is the absorbance of the solution of Coumarin dye? (ii) The concentration of the Coumarin dye is 0.004 mol dm3, and the cuvette has a path length of 1 cm. What is the molar absorptivity of Coumarin dye at 800 nm, in units of m² mot¹? (IT) The molar absorptivity of Coumarin dye at 400 nm is three times larger than at 800 nm. How would the absorbance of the solution change, when measured with 400 nm light rather than 800 nm light?

Express the following absorbances in terms of percent transmittances.(a) 0.0356(b) 0.379(c) 0.485

(a) Prove the relationship between the absorbance and concentration in Beer Lambert's law. What is the absorbance (A) of a sample if the transmittance (T) is 0.347?

Answer 2

Question

Chapter 6, Problem 6.14QAP

Interpretation Introduction

(a)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Interpretation Introduction

(b)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Interpretation Introduction

(c)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Interpretation Introduction

(d)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

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Answer 3

Question

Chapter 6, Problem 6.14QAP

Interpretation Introduction

(a)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Interpretation Introduction

(b)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Interpretation Introduction

(c)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Interpretation Introduction

(d)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

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Answer 4

Question

Chapter 6, Problem 6.14QAP

Interpretation Introduction

(a)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Interpretation Introduction

(b)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Interpretation Introduction

(c)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Interpretation Introduction

(d)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

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Answer 5

Chapter 6, Problem 6.14QAP

Interpretation Introduction

(a)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Interpretation Introduction

(b)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Interpretation Introduction

(c)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Interpretation Introduction

(d)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Answer 6

Chapter 6, Problem 6.14QAP

Interpretation Introduction

(a)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Answer 7

Chapter 6, Problem 6.14QAP

Interpretation Introduction

(a)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Answer 8

Interpretation Introduction

(b)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Answer 9

Interpretation Introduction

(b)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Answer 10

Interpretation Introduction

(c)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Answer 11

Interpretation Introduction

(c)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Answer 12

Interpretation Introduction

(d)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Answer 13

Interpretation Introduction

(d)

Interpretation:

Given absorbance value should be converted into percent transmittance.

Concept introduction:

Transmittance (T) of a medium is the fraction of incident radiation transmitted by the medium.

T=PPo

Where,

P_o = power of incident beam

P = power of transmitted beam

Percent Transmittance (T%) = PPo×100%

The relationship between absorbance ( A ) and Transmittance (T) is as follows;

A = − log(T)

Answer 14

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Answer 25

Ch. 6 - Prob. 6.1QAP Ch. 6 - Calculate the frequency in hertz, the energy in...Ch. 6 - Calculate the frequency in hertz, the wavelength...Ch. 6 - Prob. 6.4QAP Ch. 6 - Prob. 6.5QAP Ch. 6 - Prob. 6.6QAP Ch. 6 - What is the wavelength of a photon that has three...Ch. 6 - The silver bromide bond energy is approximately...Ch. 6 - Cesium is used extensively in photocells and in...Ch. 6 - Prob. 6.10QAP

Solution Summary: The author explains that absorbance value should be converted into percent transmittance.

Chapter 6 Solutions