(a) Interpretation: The absorbance of the solution containing the complex formed between Bi ( III ) and thiourea having a concentration of 4.25 × 10 − 5 M and the molar absorptivity of 9.23 × 10 3 L / mol ⋅ cm is to be calculated. Concept introduction: The absorbance of the solution is the ability of the solution to absorb the monochromatic light passing through it. The absorbance of the solution is defined as the ratio of the intensity of light incident on the solution to the intensity of light absorbed by the solution. The relation between the absorbance, path length, molar absorptivity and the concentration of the solution is given as. A = ε b c

Question

The complex formed between Cu(I) and 1,10-phenanthroline has a molar absorptivity of 7000 L mol-1 cm-1 at 435 nm, the wavelength of the maximum absorption. Calculate (a) the absorbance of 8.50 X 10-5 solution of the complex when measured in a 1.00-cm cell at 435 nm. (b) the percent transmittance of the solution in a part (a) (c) the concentration of a solution that in a 5.00-cm cell has the same absorbance as the solution in part (a) (d) the pathlength through a 3.40 X 10-5 M solution of the complex that is needed for an absorbance that is the same as the solution in part (a)

Answer 1

Question

Chapter 13, Problem 13.7QAP

Interpretation Introduction

(a)

Interpretation:

The absorbance of the solution containing the complex formed between Bi(III) and thiourea having a concentration of 4.25×10−5 M and the molar absorptivity of 9.23×103 L/mol⋅cm is to be calculated.

Concept introduction:

The absorbance of the solution is the ability of the solution to absorb the monochromatic light passing through it. The absorbance of the solution is defined as the ratio of the intensity of light incident on the solution to the intensity of light absorbed by the solution.

The relation between the absorbance, path length, molar absorptivity and the concentration of the solution is given as.

A=εbc

Interpretation Introduction

(b)

Interpretation:

The percent transmittance of the solution formed from the complex between Bi(III) and thiourea is to be calculated.

Concept introduction:

The percent transmittance of a solution is the ability of the solution to allow the monochromatic light to pass through it. The percent transmittance of a solution is the ratio of the intensity of monochromatic light incident on the solution to the intensity transmitted through the solution.

The relation between the absorbance and transmittance is established by the Beer’s law.

A=−logT

Interpretation Introduction

(c)

Interpretation:

The concentration of the solution is to be determined for the change in the path length of the cell containing the solution.

Concept introduction:

The concentration of the solution, path length of the cell and the molar absorptivity of the solution plays an important role in determining the absorbance of the solution. If any of the parameter is affected, it leads to change in the absorbance of the solution.

The relation between the absorbance, path length, molar absorptivity and the concentration of the solution is given as.

A=εbc

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The complex formed between Cu(I) and 1,10-phenanthroline has a molar absorptivity of 7000 L mol-1 cm-1 at 435 nm, the wavelength of the maximum absorption. Calculate (a) the absorbance of 8.50 X 10-5 solution of the complex when measured in a 1.00-cm cell at 435 nm. (b) the percent transmittance of the solution in a part (a) (c) the concentration of a solution that in a 5.00-cm cell has the same absorbance as the solution in part (a) (d) the pathlength through a 3.40 X 10-5 M solution of the complex that is needed for an absorbance that is the same as the solution in part (a)

The complex formed between Cu(I) and 1,10-phenanthroline has a molar absorptivity of 7000 L L cm-1 mol-1 at 435 nm, the wavelength of maximum absorption. Calculate (a) the absorbance of a 6.17 × 10-5 M solution of the complex when measured in a 1.00-cm cell at 435 nm. (b) the percent transmittance of the solution in (a).

A standard solution was put through appropriate dilu tions to give the concentrations of iron shown in the ac companying table. The iron(II)-1,10,phenanthroline complex was then formed in 25.0-ml aliquots of these solutions, following which each was diluted to 50.0 mL (see color plate 15). The absorbances in the table (1.00-cm cells) were recorded at 510 nm Fe(II) Concentration in Original Solution, ppm Aşie 4.00 0.160 0.390 10.0 16.0 0.630 24.0 0.950 32.0 1.260 40.0 1.580 (a) Plot a calibration curve from these data. (b) Use the method of least squares to find an equa tion relatin g absorbance and the concentration of iron(II). (c) Calculate the standard deviation of the slope and intercept.

Answer 2

Question

Chapter 13, Problem 13.7QAP

Interpretation Introduction

(a)

Interpretation:

The absorbance of the solution containing the complex formed between Bi(III) and thiourea having a concentration of 4.25×10−5 M and the molar absorptivity of 9.23×103 L/mol⋅cm is to be calculated.

Concept introduction:

The absorbance of the solution is the ability of the solution to absorb the monochromatic light passing through it. The absorbance of the solution is defined as the ratio of the intensity of light incident on the solution to the intensity of light absorbed by the solution.

The relation between the absorbance, path length, molar absorptivity and the concentration of the solution is given as.

A=εbc

Interpretation Introduction

(b)

Interpretation:

The percent transmittance of the solution formed from the complex between Bi(III) and thiourea is to be calculated.

Concept introduction:

The percent transmittance of a solution is the ability of the solution to allow the monochromatic light to pass through it. The percent transmittance of a solution is the ratio of the intensity of monochromatic light incident on the solution to the intensity transmitted through the solution.

The relation between the absorbance and transmittance is established by the Beer’s law.

A=−logT

Interpretation Introduction

(c)

Interpretation:

The concentration of the solution is to be determined for the change in the path length of the cell containing the solution.

Concept introduction:

The concentration of the solution, path length of the cell and the molar absorptivity of the solution plays an important role in determining the absorbance of the solution. If any of the parameter is affected, it leads to change in the absorbance of the solution.

The relation between the absorbance, path length, molar absorptivity and the concentration of the solution is given as.

A=εbc

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Answer 3

Question

Chapter 13, Problem 13.7QAP

Interpretation Introduction

(a)

Interpretation:

The absorbance of the solution containing the complex formed between Bi(III) and thiourea having a concentration of 4.25×10−5 M and the molar absorptivity of 9.23×103 L/mol⋅cm is to be calculated.

Concept introduction:

The absorbance of the solution is the ability of the solution to absorb the monochromatic light passing through it. The absorbance of the solution is defined as the ratio of the intensity of light incident on the solution to the intensity of light absorbed by the solution.

The relation between the absorbance, path length, molar absorptivity and the concentration of the solution is given as.

A=εbc

Interpretation Introduction

(b)

Interpretation:

The percent transmittance of the solution formed from the complex between Bi(III) and thiourea is to be calculated.

Concept introduction:

The percent transmittance of a solution is the ability of the solution to allow the monochromatic light to pass through it. The percent transmittance of a solution is the ratio of the intensity of monochromatic light incident on the solution to the intensity transmitted through the solution.

The relation between the absorbance and transmittance is established by the Beer’s law.

A=−logT

Interpretation Introduction

(c)

Interpretation:

The concentration of the solution is to be determined for the change in the path length of the cell containing the solution.

Concept introduction:

The concentration of the solution, path length of the cell and the molar absorptivity of the solution plays an important role in determining the absorbance of the solution. If any of the parameter is affected, it leads to change in the absorbance of the solution.

The relation between the absorbance, path length, molar absorptivity and the concentration of the solution is given as.

A=εbc

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Answer 4

Question

Chapter 13, Problem 13.7QAP

Interpretation Introduction

(a)

Interpretation:

The absorbance of the solution containing the complex formed between Bi(III) and thiourea having a concentration of 4.25×10−5 M and the molar absorptivity of 9.23×103 L/mol⋅cm is to be calculated.

Concept introduction:

The absorbance of the solution is the ability of the solution to absorb the monochromatic light passing through it. The absorbance of the solution is defined as the ratio of the intensity of light incident on the solution to the intensity of light absorbed by the solution.

The relation between the absorbance, path length, molar absorptivity and the concentration of the solution is given as.

A=εbc

Interpretation Introduction

(b)

Interpretation:

The percent transmittance of the solution formed from the complex between Bi(III) and thiourea is to be calculated.

Concept introduction:

The percent transmittance of a solution is the ability of the solution to allow the monochromatic light to pass through it. The percent transmittance of a solution is the ratio of the intensity of monochromatic light incident on the solution to the intensity transmitted through the solution.

The relation between the absorbance and transmittance is established by the Beer’s law.

A=−logT

Interpretation Introduction

(c)

Interpretation:

The concentration of the solution is to be determined for the change in the path length of the cell containing the solution.

Concept introduction:

The concentration of the solution, path length of the cell and the molar absorptivity of the solution plays an important role in determining the absorbance of the solution. If any of the parameter is affected, it leads to change in the absorbance of the solution.

The relation between the absorbance, path length, molar absorptivity and the concentration of the solution is given as.

A=εbc

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Answer 5

Chapter 13, Problem 13.7QAP

Interpretation Introduction

(a)

Interpretation:

The absorbance of the solution containing the complex formed between Bi(III) and thiourea having a concentration of 4.25×10−5 M and the molar absorptivity of 9.23×103 L/mol⋅cm is to be calculated.

Concept introduction:

The absorbance of the solution is the ability of the solution to absorb the monochromatic light passing through it. The absorbance of the solution is defined as the ratio of the intensity of light incident on the solution to the intensity of light absorbed by the solution.

The relation between the absorbance, path length, molar absorptivity and the concentration of the solution is given as.

A=εbc

Interpretation Introduction

(b)

Interpretation:

The percent transmittance of the solution formed from the complex between Bi(III) and thiourea is to be calculated.

Concept introduction:

The percent transmittance of a solution is the ability of the solution to allow the monochromatic light to pass through it. The percent transmittance of a solution is the ratio of the intensity of monochromatic light incident on the solution to the intensity transmitted through the solution.

The relation between the absorbance and transmittance is established by the Beer’s law.

A=−logT

Interpretation Introduction

(c)

Interpretation:

The concentration of the solution is to be determined for the change in the path length of the cell containing the solution.

Concept introduction:

The concentration of the solution, path length of the cell and the molar absorptivity of the solution plays an important role in determining the absorbance of the solution. If any of the parameter is affected, it leads to change in the absorbance of the solution.

The relation between the absorbance, path length, molar absorptivity and the concentration of the solution is given as.

A=εbc

Answer 6

Chapter 13, Problem 13.7QAP

Interpretation Introduction

(a)

Interpretation:

The absorbance of the solution containing the complex formed between Bi(III) and thiourea having a concentration of 4.25×10−5 M and the molar absorptivity of 9.23×103 L/mol⋅cm is to be calculated.

Concept introduction:

The absorbance of the solution is the ability of the solution to absorb the monochromatic light passing through it. The absorbance of the solution is defined as the ratio of the intensity of light incident on the solution to the intensity of light absorbed by the solution.

The relation between the absorbance, path length, molar absorptivity and the concentration of the solution is given as.

A=εbc

Answer 7

Chapter 13, Problem 13.7QAP

Interpretation Introduction

(a)

Interpretation:

The absorbance of the solution containing the complex formed between Bi(III) and thiourea having a concentration of 4.25×10−5 M and the molar absorptivity of 9.23×103 L/mol⋅cm is to be calculated.

Concept introduction:

The absorbance of the solution is the ability of the solution to absorb the monochromatic light passing through it. The absorbance of the solution is defined as the ratio of the intensity of light incident on the solution to the intensity of light absorbed by the solution.

The relation between the absorbance, path length, molar absorptivity and the concentration of the solution is given as.

A=εbc

Answer 8

Interpretation Introduction

(b)

Interpretation:

The percent transmittance of the solution formed from the complex between Bi(III) and thiourea is to be calculated.

Concept introduction:

The percent transmittance of a solution is the ability of the solution to allow the monochromatic light to pass through it. The percent transmittance of a solution is the ratio of the intensity of monochromatic light incident on the solution to the intensity transmitted through the solution.

The relation between the absorbance and transmittance is established by the Beer’s law.

A=−logT

Answer 9

Interpretation Introduction

(b)

Interpretation:

The percent transmittance of the solution formed from the complex between Bi(III) and thiourea is to be calculated.

Concept introduction:

The percent transmittance of a solution is the ability of the solution to allow the monochromatic light to pass through it. The percent transmittance of a solution is the ratio of the intensity of monochromatic light incident on the solution to the intensity transmitted through the solution.

The relation between the absorbance and transmittance is established by the Beer’s law.

A=−logT

Answer 10

Interpretation Introduction

(c)

Interpretation:

The concentration of the solution is to be determined for the change in the path length of the cell containing the solution.

Concept introduction:

The concentration of the solution, path length of the cell and the molar absorptivity of the solution plays an important role in determining the absorbance of the solution. If any of the parameter is affected, it leads to change in the absorbance of the solution.

The relation between the absorbance, path length, molar absorptivity and the concentration of the solution is given as.

A=εbc

Answer 11

Interpretation Introduction

(c)

Interpretation:

The concentration of the solution is to be determined for the change in the path length of the cell containing the solution.

Concept introduction:

The concentration of the solution, path length of the cell and the molar absorptivity of the solution plays an important role in determining the absorbance of the solution. If any of the parameter is affected, it leads to change in the absorbance of the solution.

The relation between the absorbance, path length, molar absorptivity and the concentration of the solution is given as.

A=εbc

Answer 12

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Answer 13

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Answer 23

Ch. 13 - Prob. 13.1QAP Ch. 13 - Prob. 13.2QAP Ch. 13 - Prob. 13.3QAP Ch. 13 - Prob. 13.4QAP Ch. 13 - Prob. 13.5QAP Ch. 13 - Prob. 13.6QAP Ch. 13 - Prob. 13.7QAP Ch. 13 - At 580 nm, which is the wavelength of its maximum...Ch. 13 - Prob. 13.9QAP Ch. 13 - Zinc(II) and the ligand L form a 1:1 complex that...

Chapter 13 Solutions