The question asks, "draw the hemiacetal obtained by addition of ethanol 2-methylpentanal"

My question is how to do this problem? I know you can't actually draw it out on this site. However so I know how to do it on the upcoming test.
Thanks :)

2 answers

The R is the rest of the compound connected to the carbonyl (the methyl pentanal chain). The CH3-CH2-O is the addition of ethanol, and the H is the acid that would add to the O on the carbonyl during the reaction, since the reaction has to take place with acid.

CH3-CH2-O-CHR-OH

The best I can do!!!!!!!
ok thank you that's what I got :)