The following TLC plate was developed using 10% ethyl acetate in hexanes as the mobile phase.

a. List the compounds A, B, and C in order of polarity, from least polar to most polar.

Least polar - Most Polar

b. The same mixture of A , B , and C was spotted on a new TLC plate and developed using 50% ethyl acetate in hexanes and the mobile phase. Draw spots on the blank plate that indicates the placement of each compound. Clearly label each spot as A , B , or C.

c. The same mixture of A , B , and C was spotted on a new TLC plate and developed using hexanes and the mobile phase. Draw spots on the blank plate that indicates the placement of each compound. Clearly label each spot as A , B , or C.

B A ----------- --------F 10% ethyl acetate in hexanes 50% ethyl acetate in hexanes hexanes