# organic chem

posted by .

It's one of the prelab questions.

**Exp. Ethanol from Sucrose
The diethylacetal of acetaldehyde can be detected by gas chromatography. How does this impurity arise in fermentation?

**Exp. Acetaminophen
In the reaction between p-aminophenol and acetic anhydride to form acetaminophen, 4.5 mL of water were added. What was the purpose of the water?

## Similar Questions

1. ### Ochem

The following question is due to a reaction in organic chemistry ethanol from sucrose. I did not properly state in my last post where the reaction came from. I apologize for this (Dr.Bob). I repost the same question: Calculate how …
2. ### (expi)^i

This question is not well defined. By 'expi' do you mean exp(i)?
3. ### Calculus II

What is sin(i) -- (sin of the imaginary number, i) What is cos(i)-- cosine of the imaginary number, i orrr tan(1+i) You can derive these things from the equation: Exp(i x) = cos(x) + i sin(x) ---> sin(x) = [Exp(ix) - Exp(-ix)]/(2i) …
4. ### Math/Calculus

How would I evaluate the following integral by using integration by parts?
5. ### calc: arc length

find the exact length of this curve: y = ( x^3/6 ) + ( 1/2x ) 1/2 <or= x <or= 1 im looking over my notes, but i'm getting stuck. here's my work so far: A ( 1 , 2/3 ) B ( 1/2 , 49/48 ) y' = [1/6 (3x^2)] + [1/2 (-1x^-2)] y' = ( …
6. ### Organic Chemistry

How does acetaldehyde impurity arise in the fermentation?
7. ### Organic Chemistry

Sorry about the first posted request. The question has to do with the fermentation of ethanol from sucrose Please revisit the question and assist if possible. Thanks for your assistance. How does acetaldehyde impurity arise in the …
8. ### organic chemistry

the crossed aldol condensation of acetaldehyde with benzaldehyde is aided by the face that benzaldehyde bears no alpha protons however a possible competitive reaction is the self condensation of two molecules of acetaldehyde. slow …
9. ### Chemistry

How does the Diethylacetal impurity arise in fermentation?