limiting reagent, theoretical yield, finding physical data

Please see the attachment for reaction/experiment data. How do I find the limiting reagent and the theoretical yield if, in the synthesis of ethanol by fermentation of sucrose, I do the following: 1.Place 40 grams of sucrose in a 500-mL round-bottomed flask. 2.Add 200 mL of water and 3.0 grams of dry yeast. Stir until sugar di ...continues

Confirmation of a derivative of cyclohexane

Confirmation of a derivative of cyclohexane view attachment...plz! I hope it is clear...

synthesis of 3-methylbutyl ethanoate

Please help me with part 4 of the attached problem. And please tell me if parts 1-3 are correct (these answers are in the second attachment). Thanks!

synthesis of 3-methylbutyl ethanoate

attached files

recrystalization

Explain why the volume of solvent used, and the temperature of the solvent, are important considerations in an efficient recrystalization?

Alcohol Oxidation puzzle

We oxidized 2-ethyl-1,3-hexanediol with NaOCl. 3 products could be produced. The product obtained was run through an IR spectrum (see attached). 2 of the possible products contain an OH and C=O while the 3rd contains 2 C=O functional groups. With the 2 that contained an OH group, 1 had the C=O in an aldehyde position, while ...continues

Extraction of caffeine from tea

Why is sodium chloride added to the tea solution before extracting with ethyl acetate? 4 grams of calcium carbonate was added to 90 ml's of water in a flask, then was boiled and poured over tea bags. After squeezing out the liquid sodium chloride was added to this solution I need to know why.

Extraction of caffeine from tea

At 25 degrees C, 1.0 gram of caffeine will dissolve in 47 ml of water, in 8.1 ml's of chloroform, in 86 ml of benzene, or in 370 of diethyl ether. Calculate the partition coefficient of caffeine between water and each of the other three solvents. Which of these three organic solvents would be the best choice for extracting caff ...continues

Retrosynthetic analyses involving alkylation of an alkynide ion

Questions on Retrosynthetic analyses involving alkylation of an alkynide ion. Please help me with attached problems 2, 3, and 4. Thanks very much! :)

Couple of alkane/alkene problems

1) Write equations to show how the following equations could be accomplished: A) cyclohexene to Cyclohexane B) 2-Methylbutene to 3,3,4,4-tetramethylhexane 2) Given: CH2CH3 + CL2 -----> product A) The structure for the major product from the reactions is: B) Write equations to clearly show the expected mechanism for t ...continues