(a) Interpretation: The diagram showing the hydrogen bonding between water and N, N-dimethylacetamide is to be drawn. Concept introduction: The hydrogen bonding is formed between the electronegative atoms that are already bonded to hydrogen atoms. Mono and unsubstituted amides can form hydrogen bonding with other amides as they have hydrogen atom. Disubstituted amides can form hydrogen bonding only with water.

Question

Complete the following table. The only density needed is already given. Show your calculations in a neat and easy-to-follow manner in the space below the table. All units should be included and significant figures should be given close attention. Be sure to notice that the amount of material should be in millimoles rather than moles, and the theoretical mass of the product should in milligrams rather than grams. LOCH 3 + H2SO4 HNO 3 O=C-OCH 3 NO2 x H₂O F.W. 4.0 mL 1.3 M amount 0.50 mL in H2SO4 mg Theoretical Theoretical mmoles density 1.09

Answer 1

Question

Chapter 16, Problem 16.49E

Interpretation Introduction

(a)

Interpretation:

The diagram showing the hydrogen bonding between water and N, N-dimethylacetamide is to be drawn.

Concept introduction:

The hydrogen bonding is formed between the electronegative atoms that are already bonded to hydrogen atoms. Mono and unsubstituted amides can form hydrogen bonding with other amides as they have hydrogen atom. Disubstituted amides can form hydrogen bonding only with water.

Interpretation Introduction

(b)

Interpretation:

The diagram showing the hydrogen bonding between two urea molecules is to be drawn.

Concept introduction:

The hydrogen bonding is formed between the electronegative atoms that are already bonded to hydrogen atoms. Mono and unsubstituted amides can form hydrogen bonding with other amides as they have hydrogen atom. Disubstituted amides can form hydrogen bonding only with water.

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