For a given molecule the number of signals expected in 1 H NMR spectrum to be identified. Concept Introduction : Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic. Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic. Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

Question

when performing the reaction that involves 2 equivalents of 3-(diethylamino)-phenol and Phthalic anhydride with sulfuric acid and water react to form rhodamine b where the Phthalic anhydride cleaves in acid and how does Excessive Washing (w/ Base) & Subsequent Resonance Structure get affected

Answer 1

Question

Chapter 15.4, Problem 2PTS

(a)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(b)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(c)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(d)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(e)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

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when performing the reaction that involves 2 equivalents of 3-(diethylamino)-phenol and Phthalic anhydride with sulfuric acid and water react to form rhodamine b where the Phthalic anhydride cleaves in acid and how does Excessive Washing (w/ Base) & Subsequent Resonance Structure get affected

3. The strongest acid of the following compounds is ___.A. p-nitrophenol; B. m-nitrophenol; C. o-chlorophenol;D. p-methoxyphenol; E. o-methylphenol Please explain your steps and thought process. Thank you!

Using the general properties of equilibrium constants At a certain temperature, the equilibrium constant K for the following reaction is 1.3 × 10 4: Cl2(g) + CHCl3(g) HCl(g) + CC₁(g) Use this information to complete the following table. Suppose a 16. L reaction vessel is filled with 1.6 mol of HCI and 1.6 mol of CCl4. What can you say about the composition of the mixture in the vessel at equilibrium? There will be very little Cl2 and CHCl3. ☐ x10 There will be very little HCI and CCl4. Neither of the above is true. What is the equilibrium constant for the following reaction? Be sure your answer has the correct number of significant digits. HCl(g)+CC14(g) 12 Cl2(9)+CHCl3(9) K = 0 ☐ What is the equilibrium constant for the following reaction? Be sure your answer has the correct number of significant digits. 2 Cl₂(9)+2CHCl3(9) 2 HCl(9)+2CC₁₁(9) K = ✓ 00. 18 Ar

Answer 2

Question

Chapter 15.4, Problem 2PTS

(a)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(b)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(c)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(d)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(e)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

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Answer 3

Question

Chapter 15.4, Problem 2PTS

(a)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(b)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(c)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(d)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(e)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

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Answer 4

Question

Chapter 15.4, Problem 2PTS

(a)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(b)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(c)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(d)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(e)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

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Answer 5

Chapter 15.4, Problem 2PTS

(a)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(b)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(c)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(d)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

(e)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

Answer 6

Chapter 15.4, Problem 2PTS

(a)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

Answer 7

Chapter 15.4, Problem 2PTS

(a)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

Answer 8

(b)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

Answer 9

(b)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

Answer 10

(c)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

Answer 11

(c)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

Answer 12

(d)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

Answer 13

(d)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

Answer 14

(e)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

Answer 15

(e)

Interpretation Introduction

Interpretation: For a given molecule the number of signals expected in 1H NMR spectrum to be identified.

Concept Introduction:

Homotopic: If the protons are interchangeable through rotational symmetry, then the protons are chemically equivalent and termed as homotopic.

Enantiotopic: If the protons are interchangeable through reflectional symmetry, then the protons are chemically equivalent and termed as Enantiotopic.

Diastereotopic: If the protons are not interchangeable through either of the symmetry operations, then the protons are Diastereotopic; the protons are not chemically equivalent if a chiral center present in the molecule.

Answer 16

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Ch. 15.4 - Prob. 1LTS Ch. 15.4 - Prob. 1PTS Ch. 15.4 - Prob. 2PTS Ch. 15.4 - Prob. 3PTS Ch. 15.4 - Prob. 4ATS Ch. 15.4 - Prob. 2LTS Ch. 15.5 - Prob. 3LTS Ch. 15.6 - Prob. 4LTS Ch. 15.6 - Prob. 11PTS Ch. 15.6 - Prob. 12PTS

Chapter 15 Solutions