Whetherthe normal melting point of substance X would be less than or greater than or equal to 225°C to be explained. Concept introduction Freezing point: Freezing point is defined as the temperature at which liquid into solid. Boiling point: Boiling point is temperature at which the liquid into gas. Elevation of boiling point: Elevation of boiling point of a liquid is occurrence that boiling point of a liquid would be greater when another substance is added to it. Resulting, the boiling point becomes higher than the pure solvent. Depression of freezing point: Depression of freezing point is reducing in freezing point of a solvent when added non volatile solute. Volatile substance means easily vaporized at room temperature and non volatile means does not easily evaporate at room temperature.

Question

Part II. xiao isolated a compound TAD (Ca H 10 N₂) from tobacco and obtained its IR spectrum. Xiao proposed a chemical structure shown below: % Transmittance 4000 3500 3000 2500 2000 Wavenumber (cm-1) 1500 1000 (a) Explain why her proposed structure is inconsistent with the IR spectrum obtained (b) TAD exists as a tautomer of the structure xiao proposed. Draw the structure and explain why it is more compatible with the obtained spectrum. (C) what is the possible source for the fairly intense signal at 1621cm1

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Question

Chapter 10, Problem 109E

Interpretation Introduction

Interpretation: Whetherthe normal melting point of substance X would be less than or greater than or equal to 225°C to be explained.

Concept introduction

Freezing point: Freezing point is defined as the temperature at which liquid into solid.

Boiling point: Boiling point is temperature at which the liquid into gas.

Elevation of boiling point: Elevation of boiling point of a liquid is occurrence that boiling point of a liquid would be greater when another substance is added to it. Resulting, the boiling point becomes higher than the pure solvent.

Depression of freezing point: Depression of freezing point is reducing in freezing point of a solvent when added non volatile solute. Volatile substance means easily vaporized at room temperature and non volatile means does not easily evaporate at room temperature.

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Part II. xiao isolated a compound TAD (Ca H 10 N₂) from tobacco and obtained its IR spectrum. Xiao proposed a chemical structure shown below: % Transmittance 4000 3500 3000 2500 2000 Wavenumber (cm-1) 1500 1000 (a) Explain why her proposed structure is inconsistent with the IR spectrum obtained (b) TAD exists as a tautomer of the structure xiao proposed. Draw the structure and explain why it is more compatible with the obtained spectrum. (C) what is the possible source for the fairly intense signal at 1621cm1

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