Mole and Avogadro’s Number in MCAT General Chemistry

Mole and Avogadro's Number in MCAT General Chemistry by Leah4sci

Moles and Avogadro’s number are big! And they come across as overwhelming. But YOU can master them! This video covers the definition of Moles, with an illustration showing the logic of moles in general chemistry. You’ll also see how to easily and quickly convert from and to them on the MCAT. You’ll see conversions including […]

Percent By Mass Composition MCAT General Chemistry

Stoichiometry & Reactions 5 Percent by Mass Composition Leah4sci

All the composition by percent mass questions don’t have to be confusing. You can use them to get the information you need! Learn ONE rule for them all! This video makes this concept simple. You’ll see WHY and HOW these equations work, instead of memorizing all the different percent formulas. You will see examples worked step-by-step my […]

Empirical Formula and Molecular Formula Calculations

Empirical Formula vs Molecular Formula Calculations for the MCAT by Leah4sci

Navigating through empirical formulas versus molecular formulas will help you in conversions, unknowns, and so many exam problems. This video explains the definitions, similarities, and differences between an atom’s empirical formula and its molecular formula. You will also see when the empirical and molecular formulas are the same, and a percent by mass example! (Watch […]

Molecular Weight and Formula Weight Calculations

Stoichiometry & Reactions 2 Molecular Weight by Leah Fisch

Molecular weight and formula weight calculations are key to understanding the specifics behind any MCAT reaction and experiment. This includes both atomic mass unit and grams per mole calculations. And maybe even the conversion from AMU to g/mol. This video shows you how to find molecular weight in AMUs, grams per mole, and formula weight […]

Introduction to Reactions and Stoichiometry in MCAT General Chemistry

Introduction to Reactions and Stoichiometry in MCAT General Chemistry Tutorial Video by Leah Fisch

Stoichiometry is part of MCAT Chemistry Content Category 4E. This video introduces the terms you will need for mastering this content category. Learn the distinctions between atoms, compounds, covalent bonds vs ionic bonds, molecular formula vs empirical, theoretical yield vs actual yield, and much more. (Watch on YouTube: Intro to Stoichiometry. Click cc for transcription.) Links […]

pH and Hydrolysis for Salts of Weak Acids and Bases in MCAT Chemistry

pH and Hydrolysis of Salts of Weak Acids and Bases in MCAT Chemistry by Leah Fisch

Video 8 is the final, and potentially most intriguing video in my MCAT Acid Base series. This video shows you how to identify salts that will result in an acidic, basic, or neutral solution. You’ll learn how to think about each ion to help you determine its effect on pH. (Click to watch on YouTube. […]

MCAT Chemistry Hybridization Review for sp3 sp2 and sp

sp3 sp2 and sp hybridization tutorial video

Before you can really understand molecular and electronic geometries, you need to have a strong understand of why and how atomic hybridization occurs. The videos below are taken from my Organic Chemistry Basics tutorial series to help you make sense of sp3, sp2, and sp hybridization. Once mastered you’ll find the MCAT Chemistry: Electronic and Molecular […]