The compound that has zero dipole moment and higher boiling point. Interpretation: The compound that has zero dipole moment and higher boiling point is to be identified. Concept introduction: The dipole moment gives the polarity of the compound due to polarity difference of the atoms of the compound. It gives the charge separation of the molecule. Larger the difference in the electronegativies of the atoms, larger is the dipole moment of the molecule. The compound that has high dipole moments has high boiling point due to presence of dipole-dipole attraction.

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Answer 1

Question

Chapter 7.7B, Problem 7.11P

(a)

Interpretation Introduction

To determine: The compound that has zero dipole moment and higher boiling point.

Interpretation: The compound that has zero dipole moment and higher boiling point is to be identified.

Concept introduction: The dipole moment gives the polarity of the compound due to polarity difference of the atoms of the compound. It gives the charge separation of the molecule.

Larger the difference in the electronegativies of the atoms, larger is the dipole moment of the molecule. The compound that has high dipole moments has high boiling point due to presence of dipole-dipole attraction.

(b)

Interpretation Introduction

To determine: The compound that has zero dipole moment and higher boiling point.

Interpretation: The compound that has zero dipole moment and higher boiling point is to be identified.

Concept introduction: The dipole moment gives the polarity of the compound due to polarity difference of the atoms of the compound. It gives the charge separation of the molecule.

Larger the difference in the electronegativies of the atoms, larger is the dipole moment of the molecule. The compound that has high dipole moments has high boiling point due to presence of dipole-dipole attraction.

(c)

Interpretation Introduction

To determine: The stability of the given compounds and the amount of energy that makes one of them stable.

Interpretation: The stability of the given compound is to be determined and the amount of energy that makes one of them stable is to be calculated.

Concept introduction: The stability of alkenes depends on the structure of alkene. The energy of alkene is measured by their heat of hydrogenation. More the heat of hydrogenation, more stable is the alkene.

Heat of hydrogenation of an alkene is the standard enthalpy for the catalytic hydrogenation of the alkene. The value of heat of hydrogenation is always negative.

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2. Predict the NMR spectra for each of these two compounds by listing, in the NMR tables below, the chemical shift, the splitting, and the number of hydrogens associated with each predicted peak. Sort the peaks from largest chemical shift to lowest. **Not all slots must be filled** Peak Chemical Shift (d) 5.7 1 Multiplicity multiplate .......... 5.04 double of doublet 2 4.98 double of doublet 3 4.05 doublet of quartet 4 5 LO 3.80 quartet 1.3 doublet 6 Peak Chemical Shift (d) Multiplicity

Interpreting NMR spectra is a skill that often requires some amount of practice, which, in turn, necessitates access to a collection of NMR spectra. Beyond Labz Organic Synthesis and Organic Qualitative Analysis have spectral libraries containing over 700 1H NMR spectra. In this assignment, you will take advantage of this by first predicting the NMR spectra for two closely related compounds and then checking your predictions by looking up the actual spectra in the spectra library. After completing this assignment, you may wish to select other compounds for additional practice. 1. Write the IUPAC names for the following two structures: Question 2 Question 3 2. Predict the NMR spectra for each of these two compounds by listing, in the NMR tables below, the chemical shift, the splitting, and the number of hydrogens associated with each predicted peak. Sort the peaks from largest chemical shift to lowest. **Not all slots must be filled**

11:14 ... worksheets.beyondlabz.com 3. To check your predictions, click this link for Interpreting NMR Spectra 1. You will see a list of all the - compounds in the spectra library in alphabetical order by IUPAC name. Hovering over a name in the list will show the structure on the chalkboard. The four buttons on the top of the Spectra tab in the tray are used to select the different spectroscopic techniques for the selected compound. Make sure the NMR button has been selected. 4. Scroll through the list of names to find the names for the two compounds you have been given and click on the name to display the NMR spectrum for each. In the NMR tables below, list the chemical shift, the splitting, and the number of hydrogens associated with each peak for each compound. Compare your answers to your predictions. **Not all slots must be filled** Peak Chemical Shift (d) Multiplicity 1 2 3 4 5

Answer 2

Question

Chapter 7.7B, Problem 7.11P

(a)

Interpretation Introduction

To determine: The compound that has zero dipole moment and higher boiling point.

Interpretation: The compound that has zero dipole moment and higher boiling point is to be identified.

Concept introduction: The dipole moment gives the polarity of the compound due to polarity difference of the atoms of the compound. It gives the charge separation of the molecule.

Larger the difference in the electronegativies of the atoms, larger is the dipole moment of the molecule. The compound that has high dipole moments has high boiling point due to presence of dipole-dipole attraction.

(b)

Interpretation Introduction

To determine: The compound that has zero dipole moment and higher boiling point.

Interpretation: The compound that has zero dipole moment and higher boiling point is to be identified.

Concept introduction: The dipole moment gives the polarity of the compound due to polarity difference of the atoms of the compound. It gives the charge separation of the molecule.

Larger the difference in the electronegativies of the atoms, larger is the dipole moment of the molecule. The compound that has high dipole moments has high boiling point due to presence of dipole-dipole attraction.

(c)

Interpretation Introduction

To determine: The stability of the given compounds and the amount of energy that makes one of them stable.

Interpretation: The stability of the given compound is to be determined and the amount of energy that makes one of them stable is to be calculated.

Concept introduction: The stability of alkenes depends on the structure of alkene. The energy of alkene is measured by their heat of hydrogenation. More the heat of hydrogenation, more stable is the alkene.

Heat of hydrogenation of an alkene is the standard enthalpy for the catalytic hydrogenation of the alkene. The value of heat of hydrogenation is always negative.

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Answer 3

Question

Chapter 7.7B, Problem 7.11P

(a)

Interpretation Introduction

To determine: The compound that has zero dipole moment and higher boiling point.

Interpretation: The compound that has zero dipole moment and higher boiling point is to be identified.

Concept introduction: The dipole moment gives the polarity of the compound due to polarity difference of the atoms of the compound. It gives the charge separation of the molecule.

Larger the difference in the electronegativies of the atoms, larger is the dipole moment of the molecule. The compound that has high dipole moments has high boiling point due to presence of dipole-dipole attraction.

(b)

Interpretation Introduction

To determine: The compound that has zero dipole moment and higher boiling point.

Interpretation: The compound that has zero dipole moment and higher boiling point is to be identified.

Concept introduction: The dipole moment gives the polarity of the compound due to polarity difference of the atoms of the compound. It gives the charge separation of the molecule.

Larger the difference in the electronegativies of the atoms, larger is the dipole moment of the molecule. The compound that has high dipole moments has high boiling point due to presence of dipole-dipole attraction.

(c)

Interpretation Introduction

To determine: The stability of the given compounds and the amount of energy that makes one of them stable.

Interpretation: The stability of the given compound is to be determined and the amount of energy that makes one of them stable is to be calculated.

Concept introduction: The stability of alkenes depends on the structure of alkene. The energy of alkene is measured by their heat of hydrogenation. More the heat of hydrogenation, more stable is the alkene.

Heat of hydrogenation of an alkene is the standard enthalpy for the catalytic hydrogenation of the alkene. The value of heat of hydrogenation is always negative.

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Answer 4

Question

Chapter 7.7B, Problem 7.11P

(a)

Interpretation Introduction

To determine: The compound that has zero dipole moment and higher boiling point.

Interpretation: The compound that has zero dipole moment and higher boiling point is to be identified.

Concept introduction: The dipole moment gives the polarity of the compound due to polarity difference of the atoms of the compound. It gives the charge separation of the molecule.

Larger the difference in the electronegativies of the atoms, larger is the dipole moment of the molecule. The compound that has high dipole moments has high boiling point due to presence of dipole-dipole attraction.

(b)

Interpretation Introduction

To determine: The compound that has zero dipole moment and higher boiling point.

Interpretation: The compound that has zero dipole moment and higher boiling point is to be identified.

Concept introduction: The dipole moment gives the polarity of the compound due to polarity difference of the atoms of the compound. It gives the charge separation of the molecule.

Larger the difference in the electronegativies of the atoms, larger is the dipole moment of the molecule. The compound that has high dipole moments has high boiling point due to presence of dipole-dipole attraction.

(c)

Interpretation Introduction

To determine: The stability of the given compounds and the amount of energy that makes one of them stable.

Interpretation: The stability of the given compound is to be determined and the amount of energy that makes one of them stable is to be calculated.

Concept introduction: The stability of alkenes depends on the structure of alkene. The energy of alkene is measured by their heat of hydrogenation. More the heat of hydrogenation, more stable is the alkene.

Heat of hydrogenation of an alkene is the standard enthalpy for the catalytic hydrogenation of the alkene. The value of heat of hydrogenation is always negative.

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Answer 5

Chapter 7.7B, Problem 7.11P

(a)

Interpretation Introduction

To determine: The compound that has zero dipole moment and higher boiling point.

Interpretation: The compound that has zero dipole moment and higher boiling point is to be identified.

Concept introduction: The dipole moment gives the polarity of the compound due to polarity difference of the atoms of the compound. It gives the charge separation of the molecule.

Larger the difference in the electronegativies of the atoms, larger is the dipole moment of the molecule. The compound that has high dipole moments has high boiling point due to presence of dipole-dipole attraction.

(b)

Interpretation Introduction

To determine: The compound that has zero dipole moment and higher boiling point.

Interpretation: The compound that has zero dipole moment and higher boiling point is to be identified.

Concept introduction: The dipole moment gives the polarity of the compound due to polarity difference of the atoms of the compound. It gives the charge separation of the molecule.

Larger the difference in the electronegativies of the atoms, larger is the dipole moment of the molecule. The compound that has high dipole moments has high boiling point due to presence of dipole-dipole attraction.

(c)

Interpretation Introduction

To determine: The stability of the given compounds and the amount of energy that makes one of them stable.

Interpretation: The stability of the given compound is to be determined and the amount of energy that makes one of them stable is to be calculated.

Concept introduction: The stability of alkenes depends on the structure of alkene. The energy of alkene is measured by their heat of hydrogenation. More the heat of hydrogenation, more stable is the alkene.

Heat of hydrogenation of an alkene is the standard enthalpy for the catalytic hydrogenation of the alkene. The value of heat of hydrogenation is always negative.

Answer 6

Chapter 7.7B, Problem 7.11P

(a)

Interpretation Introduction

To determine: The compound that has zero dipole moment and higher boiling point.

Interpretation: The compound that has zero dipole moment and higher boiling point is to be identified.

Concept introduction: The dipole moment gives the polarity of the compound due to polarity difference of the atoms of the compound. It gives the charge separation of the molecule.

Larger the difference in the electronegativies of the atoms, larger is the dipole moment of the molecule. The compound that has high dipole moments has high boiling point due to presence of dipole-dipole attraction.

Answer 7

Chapter 7.7B, Problem 7.11P

(a)

Interpretation Introduction

To determine: The compound that has zero dipole moment and higher boiling point.

Interpretation: The compound that has zero dipole moment and higher boiling point is to be identified.

Concept introduction: The dipole moment gives the polarity of the compound due to polarity difference of the atoms of the compound. It gives the charge separation of the molecule.

Larger the difference in the electronegativies of the atoms, larger is the dipole moment of the molecule. The compound that has high dipole moments has high boiling point due to presence of dipole-dipole attraction.

Answer 8

(b)

Interpretation Introduction

To determine: The compound that has zero dipole moment and higher boiling point.

Interpretation: The compound that has zero dipole moment and higher boiling point is to be identified.

Concept introduction: The dipole moment gives the polarity of the compound due to polarity difference of the atoms of the compound. It gives the charge separation of the molecule.

Larger the difference in the electronegativies of the atoms, larger is the dipole moment of the molecule. The compound that has high dipole moments has high boiling point due to presence of dipole-dipole attraction.

Answer 9

(b)

Interpretation Introduction

To determine: The compound that has zero dipole moment and higher boiling point.

Interpretation: The compound that has zero dipole moment and higher boiling point is to be identified.

Concept introduction: The dipole moment gives the polarity of the compound due to polarity difference of the atoms of the compound. It gives the charge separation of the molecule.

Larger the difference in the electronegativies of the atoms, larger is the dipole moment of the molecule. The compound that has high dipole moments has high boiling point due to presence of dipole-dipole attraction.

Answer 10

(c)

Interpretation Introduction

To determine: The stability of the given compounds and the amount of energy that makes one of them stable.

Interpretation: The stability of the given compound is to be determined and the amount of energy that makes one of them stable is to be calculated.

Concept introduction: The stability of alkenes depends on the structure of alkene. The energy of alkene is measured by their heat of hydrogenation. More the heat of hydrogenation, more stable is the alkene.

Heat of hydrogenation of an alkene is the standard enthalpy for the catalytic hydrogenation of the alkene. The value of heat of hydrogenation is always negative.

Answer 11

(c)

Interpretation Introduction

To determine: The stability of the given compounds and the amount of energy that makes one of them stable.

Interpretation: The stability of the given compound is to be determined and the amount of energy that makes one of them stable is to be calculated.

Concept introduction: The stability of alkenes depends on the structure of alkene. The energy of alkene is measured by their heat of hydrogenation. More the heat of hydrogenation, more stable is the alkene.

Heat of hydrogenation of an alkene is the standard enthalpy for the catalytic hydrogenation of the alkene. The value of heat of hydrogenation is always negative.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 7.3A - Prob. 7.1P Ch. 7.3A - Prob. 7.2P Ch. 7.3B - Draw five more compounds of formula C4H6NOC1.Ch. 7.3B - For each of the following molecular formulas,...Ch. 7.4 - Give the systematic (IUPAC) names of the following...Ch. 7.5B - The following names are all incorrect. Draw the...Ch. 7.5B - Prob. 7.8P Ch. 7.5B - a. How many stereogcmc double bonds are in...Ch. 7.6 - Teflon-coated frying pans routinely endure...Ch. 7.7B - Prob. 7.11P

Solution Summary: The author analyzes the structure of the compounds with dipole notations.

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