I am required to take my MCAT by May 1st of next year to enter a certain program. I however, will not be taking my second semester of organic chemistry until the following fall semester. How bad will this ruin my chances of doing good on the MCAT? I will have all the rest of my chemistry done.
Most of the Orgo you will see is from the first semester.
Go on the official AAMC site and look at the official topic list.
Here are the major headings
-> The Covalent Bond (stuff you learn in the first week: hybridization, stereochemistry)
-> Molecular Structure and Spectra (spectroscopy and spectrometry)
-> Separation and Purification (lab stuff but also 1st semester)
Then it goes one by one through all the different functional groups. Some of those you may not have hit yet but overall, very little Orgo on the test and very little of that is from the second semester.
Definitely try to learn it on your own but don't sweat it. It's not complicated stuff and it's not going to absolutely destroy your score, if it affects it at all.