Active Writing for Long Term MCAT Memorization

Active Writing for Long Term Memorization for MCAT studying

Preparing for the MCAT is a slow and steady process. But with so much to learn and remember, How do you ensure that you don’t forget the old material as you move on learning more and more new content? The purpose of Phase 1 is building a solid content foundation. This is accompanied by the […]

The Right Time to Take the MCAT

The Right Time to Take the MCAT

When should you take your MCAT? This is the million dollar question. If your dream is to become a physician, you have to take the MCAT. Medical schools in the United States and Canada require this exam; as well as many schools in the Caribbean, Australia, Europe, even Asia. Since the majority of my MCAT […]

Swap Method for finding R and S Configurations Chirality

swap method for r and s stereochemistry

Chirality/Stereochemistry Video Series: Video 4 R and S configurations are pretty straight-forward when priority group #4 is conveniently in the back of the molecule. There’s even a quick trick for when group #4 is forward (as taught in this video). But what happens when priority group #4 is in the plain of the page? Do […]

Friedel Crafts Alkylation vs Acylation EAS Reactions Tutorial Video

alkylation vs acylation by Leah4sci

EAS Series: Video 8 This video shows you a comparison of the Friedel-Crafts alkylation and acylation reactions, including the limitations of FC alkylation, and how to convert an acylation product to the reduced alkyl version. (Watch on YouTube: Alkylation v. Acylation. Click CC on bottom right for transcript.) <– Watch Previous Video: Friedel Crafts Acylation […]

A Simple Approach to Retrosynthesis in Organic Chemistry

Organic Chemistry Retrosynthesis Tutorial by Leah4sci

In Organic Chemistry, synthesis and retrosynthesis go hand in hand. While there isn’t a clear distinction, I like to think of synthesis as forward thinking and retrosynthesis as the reverse. Synthesis is a topic that is typically introduced in Organic Chemistry 1, right after studying alkyne reactions. You’ll be utilizing it again and again as […]

Choosing SN1 SN2 E1 E2 Reaction Mechanism


This video provides a step by step walk through of a difficult SN1 SN2 E1 E2 mechanism when given a product. This question comes from a student’s practice exam where over 100 students failed to get full credit. You can learn how to ace questions like this by paying attention to the LOGIC more than just […]

How to Tackle Organic Chemistry Synthesis Questions

How to tackle organic chemistry synthesis

Organic chemistry may cover many concepts and topics, but it’s all about the reactions and mechanisms. It’s not so scary at first, think about the simple acid/base deprotonation, an alkene reaction here, another there. Before you know it, you’re drowning in dozens upon dozens of reactions! You’re asked to ‘memorize’ each one, to know what every […]

Markovnikov vs Anti-Markovnikov in Alkene Addition Reactions

Markovnikov vs Anti-Markovnikov in Alkene Addition Reactions Tutorial by Leah4Sci for Organic Chemistry studentsv

Markovnikov’s Rule is a very important pattern to both understand and recognize when studying alkene addition reactions. What is Markovnikov’s rule all about and how does this impact regioselectivity in electrophilic addition reactions? As you follow along with my alkene reactions cheat sheet, you’ll notice that many reactions are labeled Mark or Anti-Mark and syn or […]

SN1 SN2 E1 E2 Reaction Mechanism Review

SN1 SN2 E1 E2 Reaction Mechanism Overview Video

SN1 SN2 E1 Series: Video 2 SN1 SN2 E1 E2 comprise the most difficult set of reactions you’ll learn in organic chemistry. The reactions themselves are simple enough but choosing which ones to use when can be tricky. This video will give you a quick overview/review of the individual reactions and mechanisms to prepare you […]

Cyclohexane Chair to Double Newman Quiz Challenge Question

Cyclohexane Chair to Double Newman Projection tutorial video

This video walks you through the Chair Conformations Practice Quiz bonus question B – Converting a cyclohexane chair conformation to double Newman Projections. Practice is ESSENTIAL to mastering Organic Chemistry. You have to be able to apply the skills you are learning. First, complete the Cyclohexane Chair Conformations Practice Quiz, and then watch this video where I go over the Challenge Question […]