Explanation The reaction which takes place is: C 6 H 5 NH 2 + 3 Br 2 → Br 3 C 6 H 2 NH 2 ( s ) + 3 H + + 3 Br − ......... (I) As from reaction (I) 1 mol C 6 H 5 NH 2 is equal to 3 mol of Br 2 and 6 mol of Br − . From reaction (I), each Br 2 required 2 e − , therefore the 3 mol of Br 2 required 6 mol e − . The expression of number of moles of C 6 H 5 NH 2 is: n C 6 H 5 NH 2 = I ( t anode − t cathod ) n F ( 1 mol of C 6 H 5 NH 2 ) ......... (II) Here, the electric current is I , the time taken in anode is t anode and time taken in cathode is t cathode , the number of moles is n and the Faraday constant is F . The expression of mass of C 6 H 5 NH 2 is: m C 6 H 5 NH 2 = n C 6 H 5 NH 2 × m molar of C 6 H 5 NH 2 ......... (III) Here, the molar mass of C 6 H 5 NH 2 is m molar of C 6 H 5 NH 2 . Substitute 1.61 mA for I 3.76 min for t anode , 0.27 min for t cathode , 6 mol e − for n and 96485 C / mol e − for F in Equation (II). n C 6 H 5 NH 2 = ( 1.61 mA ) ( 3

7th Edition

ISBN: 9781305577213

Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher: Cengage Learning

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Question

Chapter 24, Problem 24.11QAP

Interpretation Introduction

Interpretation:

The mass of C6H5NH2 in micrograms.

Concept introduction:

The sum of the total mass of a molecule in grams which is made by a particular molecule is called molar mass of a molecule.

Expert Solution & Answer

Chapter 24 Solutions

Principles of Instrumental Analysis

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The mass of C 6 H 5 NH 2 in micrograms. Concept introduction: The sum of the total mass of a molecule in grams which is made by a particular molecule is called molar mass of a molecule.

Solution Summary: The author explains the molar mass of a molecule in micrograms, which is 5.42g.

Interpretation:

The mass of C6H5NH2 in micrograms.

Concept introduction:

The sum of the total mass of a molecule in grams which is made by a particular molecule is called molar mass of a molecule.

Chapter 24 Solutions

The mass of C 6 H 5 NH 2 in micrograms. Concept introduction: The sum of the total mass of a molecule in grams which is made by a particular molecule is called molar mass of a molecule.

Solution Summary: The author explains the molar mass of a molecule in micrograms, which is 5.42g.

Interpretation: The mass of C6H5NH2 in micrograms. Concept introduction: The sum of the total mass of a molecule in grams which is made by a particular molecule is called molar mass of a molecule.

Chapter 24 Solutions

Interpretation:

The mass of C6H5NH2 in micrograms.

Concept introduction:

The sum of the total mass of a molecule in grams which is made by a particular molecule is called molar mass of a molecule.