Sterochemistry

Please refer to attachments provided for the full problem descriptions.

Part I: Sterochemistry, Part II: Fractional Distillation

Part I: Refer to attachment for sterochemistry Part II: TEMP(C) mmHg TEMP(C) mmHg Benzene 30 120 Toluene 30 37 40 180 40 60 50 270 50 95 60 390 60 140 ...continues

Structure for 2 products

I need help determining how the products below might be formed and what their structures might look like: Br2(over Arrow) 2-butyne --------->C4H6Br2(28%yld) + C6H12Br2O2(65%yld) CH3OH(under arrow) Thanks for any help!

Synthesizing 3-hexanone

i am trying to synthesize 3-hexanone from acetylene and ethyl bromide. Any help with how this can be done?

Preparation of Isopentyl Acetate

Why is a large excess of acetic acid used in the preparation of isopentyl acetate?

Sulfuric Acid as a Catalyst

Concentrated sulfuric acid is used as a catalyst for the esterification of acetic acid in the preparation of isopentyl acetate. Why is sulfuric acid needed if another acid, acetic acid, is already present?

Mole and Weight Percent Composition

Gas chromatographic analysis of a mixture of organic compounds gave the following peak areas (sq cm): hexane = 2.7; heptane = 1.6; hexanol = 1.8; toluene = 0.5. (a) Calculate the mole percent composition of the mixture. Assume that the response of the detector (area per mole) is the same for each component. (b) Calculate t ...continues

Alkene Products

When tert-pentyl bromide is treated with 80% ethanol, the amounts of alkene products indicated below are detected on analysis: CH3CH=C(CH3)2 (32%) CH3CH2C=CH2 (there is also a CH3 single bonded underneath the single C, but I didn't know how to draw it in) (8%) tert-Pentyl alcohol, tert-Pentyl ethyl ether (60%) ...continues

Dehydration of Alcohols

Why is sulfuric acid, rather than hydrochloric acid, used to catalyze the dehydration of alcohols?

Specific Rotation of a Compound

A sample of 150 mg of an organic compound is dissolved in 7.5 mL of water. The solution is placed in a 20-cm polarimeter tube and the rotation measured in a polarimeter. The rotation observed was +2.676 degrees. Distilled water, in the same tube, gave a reading of +0.016 degrees. Calculate the specific rotation for the compound.