1 / 10

Chapter 14 Aldehydes, Ketones, and Chiral Molecules

Chapter 14 Aldehydes, Ketones, and Chiral Molecules. 14.2 Physical Properties of Aldehydes and Ketones. Polar Carbonyl Group. The polar carbonyl group provides dipole – dipole interactions does not have H on the oxygen atom cannot form hydrogen bonds. Boiling Points.

wgranger
Download Presentation

Chapter 14 Aldehydes, Ketones, and Chiral Molecules

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 14 Aldehydes, Ketones, and Chiral Molecules 14.2Physical Properties of Aldehydesand Ketones

  2. Polar Carbonyl Group The polar carbonyl group • provides dipole–dipole interactions • does not have H on the oxygen atom • cannot form hydrogen bonds

  3. Boiling Points Aldehydes and ketones have • polar carbonyl groups (C═O) • attractions between polar groups • higher boiling points than alkanes and ethers of similar mass • lower boiling points than alcohols of similar mass

  4. Comparison of Boiling Points

  5. Comparison of Physical Properties

  6. Learning Check Select the compound in each pair that would have the higher boiling point. Explain. A. CH3—CH2—CH3 or CH3—CH2—OH B. or C. CH3—CH2—OH or CH3—O—CH3

  7. Solution Select the compound in each pair that would have the higher boiling point. Explain. A. CH3—CH2—OH An alcohol forms hydrogen bonds. B. There are dipole–dipole attractions between the carbonyl groups C. CH3—CH2—OH An alcohol forms hydrogen bonds, but an ether does not.

  8. Solubility in Water Aldehydes and ketones • are soluble in water • have electronegative O atoms in their carbonyl groups that form hydrogen bonds with water

  9. Learning Check Indicate if each of the following is or is not soluble in water: A. CH3—CH2—CH3 B. CH3—CH2—OH C. D.

  10. Solution Indicate if each of the following is or is not soluble in water: A. CH3—CH2—CH3 B. CH3—CH2—OH C. D. not soluble in water soluble in water soluble in water soluble in water

More Related