The discrepancy between the molecular weight of ethylene glycol obtained from periodic table and experimental high resolution mass spectrometry should be explained. Concept introduction: The molecular weight of any molecule is generally calculated as the sum of atomic weights of all the participating atoms of each element. The atomic weights are already calculated and placed in the periodic table which helps to determine the value of molecular weight. These atomic weights are generally the average weight of all the isotopes of the same element. In mass spectroscopy, the weights of isotopes are taken into consideration which may vary from the average atomic weight. Given: Molecular weight of ethylene glycol from calculation through standard periodic table data is 62.0689 . Molecular weight of ethylene glycol from high resolution mass spectroscopy is 62.0368 . To explain: The discrepancy between molecular weights of ethylene glycol calculated through periodic table and high resolution mass spectrometry.

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Answer 1

Question

Chapter 3, Problem 3.112CP

Interpretation Introduction

Interpretation:

The discrepancy between the molecular weight of ethylene glycol obtained from periodic table and experimental high resolution mass spectrometry should be explained.

Concept introduction:

The molecular weight of any molecule is generally calculated as the sum of atomic weights of all the participating atoms of each element.
The atomic weights are already calculated and placed in the periodic table which helps to determine the value of molecular weight. These atomic weights are generally the average weight of all the isotopes of the same element.

In mass spectroscopy, the weights of isotopes are taken into consideration which may vary from the average atomic weight.

Given:

Molecular weight of ethylene glycol from calculation through standard periodic table data is 62.0689.
Molecular weight of ethylene glycol from high resolution mass spectroscopy is 62.0368.

To explain:

The discrepancy between molecular weights of ethylene glycol calculated through periodic table and high resolution mass spectrometry.

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Answer 2

Question

Chapter 3, Problem 3.112CP

Interpretation Introduction

Interpretation:

The discrepancy between the molecular weight of ethylene glycol obtained from periodic table and experimental high resolution mass spectrometry should be explained.

Concept introduction:

The molecular weight of any molecule is generally calculated as the sum of atomic weights of all the participating atoms of each element.
The atomic weights are already calculated and placed in the periodic table which helps to determine the value of molecular weight. These atomic weights are generally the average weight of all the isotopes of the same element.

In mass spectroscopy, the weights of isotopes are taken into consideration which may vary from the average atomic weight.

Given:

Molecular weight of ethylene glycol from calculation through standard periodic table data is 62.0689.
Molecular weight of ethylene glycol from high resolution mass spectroscopy is 62.0368.

To explain:

The discrepancy between molecular weights of ethylene glycol calculated through periodic table and high resolution mass spectrometry.

Expert Solution & Answer

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Answer 3

Question

Chapter 3, Problem 3.112CP

Interpretation Introduction

Interpretation:

The discrepancy between the molecular weight of ethylene glycol obtained from periodic table and experimental high resolution mass spectrometry should be explained.

Concept introduction:

The molecular weight of any molecule is generally calculated as the sum of atomic weights of all the participating atoms of each element.
The atomic weights are already calculated and placed in the periodic table which helps to determine the value of molecular weight. These atomic weights are generally the average weight of all the isotopes of the same element.

In mass spectroscopy, the weights of isotopes are taken into consideration which may vary from the average atomic weight.

Given:

Molecular weight of ethylene glycol from calculation through standard periodic table data is 62.0689.
Molecular weight of ethylene glycol from high resolution mass spectroscopy is 62.0368.

To explain:

The discrepancy between molecular weights of ethylene glycol calculated through periodic table and high resolution mass spectrometry.

Expert Solution & Answer

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Answer 4

Question

Chapter 3, Problem 3.112CP

Interpretation Introduction

Interpretation:

The discrepancy between the molecular weight of ethylene glycol obtained from periodic table and experimental high resolution mass spectrometry should be explained.

Concept introduction:

The molecular weight of any molecule is generally calculated as the sum of atomic weights of all the participating atoms of each element.
The atomic weights are already calculated and placed in the periodic table which helps to determine the value of molecular weight. These atomic weights are generally the average weight of all the isotopes of the same element.

In mass spectroscopy, the weights of isotopes are taken into consideration which may vary from the average atomic weight.

Given:

Molecular weight of ethylene glycol from calculation through standard periodic table data is 62.0689.
Molecular weight of ethylene glycol from high resolution mass spectroscopy is 62.0368.

To explain:

The discrepancy between molecular weights of ethylene glycol calculated through periodic table and high resolution mass spectrometry.

Expert Solution & Answer

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Answer 5

Chapter 3, Problem 3.112CP

Interpretation Introduction

Interpretation:

The discrepancy between the molecular weight of ethylene glycol obtained from periodic table and experimental high resolution mass spectrometry should be explained.

Concept introduction:

The molecular weight of any molecule is generally calculated as the sum of atomic weights of all the participating atoms of each element.
The atomic weights are already calculated and placed in the periodic table which helps to determine the value of molecular weight. These atomic weights are generally the average weight of all the isotopes of the same element.

In mass spectroscopy, the weights of isotopes are taken into consideration which may vary from the average atomic weight.

Given:

Molecular weight of ethylene glycol from calculation through standard periodic table data is 62.0689.
Molecular weight of ethylene glycol from high resolution mass spectroscopy is 62.0368.

To explain:

The discrepancy between molecular weights of ethylene glycol calculated through periodic table and high resolution mass spectrometry.

Answer 6

Chapter 3, Problem 3.112CP

Interpretation Introduction

Interpretation:

The discrepancy between the molecular weight of ethylene glycol obtained from periodic table and experimental high resolution mass spectrometry should be explained.

Concept introduction:

The molecular weight of any molecule is generally calculated as the sum of atomic weights of all the participating atoms of each element.
The atomic weights are already calculated and placed in the periodic table which helps to determine the value of molecular weight. These atomic weights are generally the average weight of all the isotopes of the same element.

In mass spectroscopy, the weights of isotopes are taken into consideration which may vary from the average atomic weight.

Given:

Molecular weight of ethylene glycol from calculation through standard periodic table data is 62.0689.
Molecular weight of ethylene glycol from high resolution mass spectroscopy is 62.0368.

To explain:

The discrepancy between molecular weights of ethylene glycol calculated through periodic table and high resolution mass spectrometry.

Answer 7

Chapter 3, Problem 3.112CP

Interpretation Introduction

Interpretation:

The discrepancy between the molecular weight of ethylene glycol obtained from periodic table and experimental high resolution mass spectrometry should be explained.

Concept introduction:

The molecular weight of any molecule is generally calculated as the sum of atomic weights of all the participating atoms of each element.
The atomic weights are already calculated and placed in the periodic table which helps to determine the value of molecular weight. These atomic weights are generally the average weight of all the isotopes of the same element.

In mass spectroscopy, the weights of isotopes are taken into consideration which may vary from the average atomic weight.

Given:

Molecular weight of ethylene glycol from calculation through standard periodic table data is 62.0689.
Molecular weight of ethylene glycol from high resolution mass spectroscopy is 62.0368.

To explain:

The discrepancy between molecular weights of ethylene glycol calculated through periodic table and high resolution mass spectrometry.

Answer 8

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Answer 9

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Answer 10

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Answer 11

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