CHEM 30B  Dr. R. Rinehart

ALDEHYDES AND KETONES

Record your observations on the DATA SHEET

See below for additional information

compound

& structure

class

ald  or  ket

odor

describe

solubility

misc, vs, s, sls, i

iodoform

+ = yellow ppt

Benedict’s

+ =  orange ppt

2,4-DNPH

record color of ppt

acetone

acetophenone

benzaldehyde

2-butanone

camphor

cinnamaldehyde

cyclohexanone

D-glucose 

propanal

vanillin 

While we will not have a workshop tonight, you may find it worthwhile to complete the Chime exercises for Chapter 14 at Cabrillo College. Using Netscape*, go to http://c4.cabrillo.edu/chem30b/exercises/exerhome.html . In the list under “Chime exercises,”  select  Chapter 14. There are nine exercises. Use the link on the Ch 14 index page to print your own worksheet; then answer the questions.
HINT: Use the right-click pop-up menu to change the display as needed. I suggest changing every display on each page to "Sticks" before doing anything else. Then rotate for best view. UNchecking the “Display Hydrogens” option is a big help in drawing line structures, but for some of these questions you may want to restore the H. You MUST indicate heteroatoms [and attached H] using their symbols.