Resonance Structures of Benzene

Benzene Resonance step by step in Video Tutorial Series by leah4sci

Benzene is a unique molecule when it comes to resonance structures. This video will show you how to draw the ‘circle’ of resonance for benzene, as well as resonance intermediates for substituted aromatic compounds including Electron Donating Groups EDG which resonate into the ring and Electron Withdrawing Groups EWG which cause resonance out of the ring. […]

Cyclohexane Chair Conformations Practice Quiz

Cyclohexane Chair Conformations Quiz

Chair conformations can present quite the challenge in Organic Chemistry. But they don’t have to. Start by gaining your foundation in the Chair Conformations Tutorial Series.  Then test your knowledge and understanding of this topic with the quiz below. Scroll to the very bottom of this quiz for a link to the FREE quiz solutions PDF […]

Cyclohexane Chair Conformations Axial and Equatorial Stability

Cyclohexane Chair Conformations video tutorial drawn and shown on model kit .jpg

“Why does cyclohexane have to be in a chair conformation? How do I know which carbon goes up or down?” Learn this and more in video 1 of the chair conformation series. Learn how to recognize a chair, what it represents (with a model kit and on paper) and the nature of axial and equatorial substituents. (Watch […]

Newman Projection to Bond-Line Notation Trick Organic Chemistry

Newman Projection to Bond Line Notation Trick by Leah4Sci

Newman Projection Series: Video 5 Newman projections provide you with a unique perspective of analyzing atomic interactions in a molecule. However, converting between Newman Projection and Sawhorse can be somewhat tricky. This video teaches you a quick shortcut for when you need to quickly convert between Newman to Sawhorse or Sawhorse to Newman. (Watch on […]

Resonance Structures Organic Chemistry Tutorial Video

Watch Orgo basics resonance structures step by step video tutorial by Leah4Sci

Orgo Basics Video Series: Video 6 Resonance structures are alternative Lewis structures for a molecule or an ion. To draw the resonance hybrid or structures, we are moving electrons between adjacent atoms.  Overwhelmed? In the video below, you will see an explanation and illustration of resonance structures and resonance hybrids step-by-step. This will help you visualize […]

Major and Minor Resonance Contributing Structures


Orgo Basics Video Series: Video 7 You know now how to draw the resonance structures. But which one is the most accurate resonance structure?  Which one is most representative of the molecule? In this video, I will explain what it means to be the most stable & least stable resonance structures and how to identify it […]

Cis Trans and E Z Geometric Isomers

Cis Trans E Z Step by Step tutorial by Leah4Sci

Your organic chemistry course will cover many different types of isomers. Isomers have the same molecular formula but something about them is different. Geometric isomers, a type of stereoisomer, differ in their geometry or shape. This happens when substituents are LOCKED in a specific relationship to each other. I say locked because, unlike conformational isomers in […]

Resonance Practice Problems for Organic Chemistry

Resonance Practice Problems for Organic Chemistry Tutorial Video

Think you know Resonance structures? Test your knowledge with my Resonance Structures Practice Quiz! Practice is ESSENTIAL to mastering Organic Chemistry. You have to be able to apply the skills you are learning. First, complete the Resonance Structures Practice Quiz, and then watch this video where I go over the first three question solutions and explanations step-by-step! (Watch […]

Intro to Orgo Video Series

Intro to Orgo Electron Configuration part 2

Organic chemistry professors typically take it for granted that you remember everything you learned in General Chemistry. However, for 99% of students, forget over break! This video series will give you an in-depth review of the General Chemistry topics that will build a strong Organic Chemistry foundation. Be a part of the 1% who is prepared! […]

Propyl Butyl and Pentyl Branched Substituents

Butyl Substituent Isomers butane n-butyl secbutyl isobutyl tert butyl

When you hear n-butyl, secbutyl, isobutyl and tert butyl. Do these terms scare you? Learning Organic Chemistry is like learning a new language where certain prefixes and suffixes will mean different things. Different ways of arranging bits and pieces will bring you to different variations of compounds. But just like a new language, the more you see it, […]