Organic Chemistry

Post lab question

1. we know there is -OH group in o- hydroxacetophenon. Then -OH group cause a lower melting point.

2. a. the solvent may have a high polarity. I may change a lower polarity solvent.

b. the solvent is lower polar, I should change a higher polarity solvent.

c. I have to do this experiment again.

3. the o-toluic acid have more polar, then it will have a lower Rf, the naphthalene will have a higher Rf, and Fluorenol at middle Rf.

4. 4-decanone, xylene, and cycloheptane have a larger Rf value.

5. Heptane, toluene, dichloromethane, n-propanol, ethyl acetate, ethanol

6. a, keep the spots not too big. The big spot will be blurry.

b. try have more times drops.

c. use pencils to mark the plate, because ink will dissolve in the solvent.

7. A

8. C

9. C