Brian McLogan
Writing a compound inequality from a graph, or ? - math help
👉 Learn how to write the inequality given a graph on a number line. To do this we will need to know the difference between open and closed points as well as what it means for a value to be less than or greater than another value.
Professor Dave Explains
Practice Problem: Oxidizing Agents
For this one we need to know the ability of different oxidizing agents to react with various functional groups, and what functional groups will result.
Professor Dave Explains
IIT/JEE Chemistry Practice #17: Molecular Geometry
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Curated Video
JavaScript Conditionals
Every coding language needs a way of making decisions. It is conditional statements that allow code to make decisions. Mark demonstrates in this video
Professor Dave Explains
Practice Problem: Lattice Energy and Ionic Bond Strength
We know that within an ionic compound, the ions are held together by ionic bonds. What is the strength of those bonds, and what is the lattice energy possessed by the entire lattice? Can we compare two compounds and say which has the...
Professor Dave Explains
IIT/JEE Chemistry Practice #2: Molar Mass/Stoichiometry
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Professor Dave Explains
Practice Problem: Assigning Molecular Structure From an NMR Spectrum
For this one we need to be able to interpret NMR data in order to arrive at the correct molecular structure based on an empirical formula. It's not as hard as it sounds!
Professor Dave Explains
IIT/JEE Chemistry Practice #8: Molecular Formulas
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Professor Dave Explains
IIT/JEE Chemistry Practice #5: Oxidation Numbers
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Healthcare Triage
Why A Spike in Vaping Deaths and Illnesses?
Electronic cigarettes, like Juul, have been in use in the United States for over a decade now, so what’s up with the sudden spike in e-cigarette related illnesses? SPOILER: We wish we knew more.
Professor Dave Explains
Practice Problem: Empirical and Molecular Formulas
How do we know how many atoms of each element are in a particular compound? Through clever experiments! Here let's practice using percent mass information to get the empirical and molecular formulas of a particular compound.
Curated Video
AWS Certified Data Analytics Specialty 2021 - Hands-On! - Amazon Redshift Sort Keys
This video explains how to select the Amazon Redshift sort keys. This clip is from the chapter "Domain 4: Analysis" of the series "AWS Certified Data Analytics Specialty 2021 "Hands-On!".In this section, you will learn how to build a...
Curated Video
What If You Eat Mango Skin?
When it comes to eating fruits, there is an incredibly wide variety, as they come in all shapes and sizes, textures, flavors, and colors. When it comes to fruits like apples and grapes, most people know that it’s completely safe, and...
Curated Video
Calculating Compound Interest
This video shows the process for solving the problem presented in IGCSE A June 2018 paper 2HR Q6, which involves calculating compound interest. Students will understand the concept of compound interest and how it differs from simple...
Catalyst University
Hippurate Hydrolysis Test | Theory & Results
In this video, we explore the theory of the hippurate hydrolysis [hippuricase] test and how to interpret the results.
After Skool
Why Don't Country Flags Use The Color Purple?
For centuries purple dye was worth more than gold. The dye used to produce purple fabric came from a sea snail that only lived off the shores of modern day Lebanon. Because it was so rare, purple became associated with royalty. This is...
Curated Video
The Fascinating World of Chromium
In this video, the teacher provides a detailed description of the element chromium. They explain its chemical symbol and atomic number, as well as its physical properties such as its gray, shiny, and hard nature. The teacher explains the...
Curated Video
The Versatile and Essential Element: Titanium
In this video, we learn about titanium, a strong and lightweight element with various uses and properties.
Curated Video
Solving Absolute Value Conjunction Inequalities
In this video, the teacher explains how to solve absolute value conjunction inequalities by writing two different inequalities. The concept of absolute value is introduced, and the process of solving absolute value equations is...
Professor Dave Explains
Writing Chemical Equations in Words
Sometimes we want to talk about chemistry without using fancy symbols, just with words. Shouldn't we be able to do that? Yes, we should! Here's how.
Curated Video
Understanding Relative Formula Mass in Chemistry
The video discusses the concept of relative formula mass and how to calculate it using examples of simple and more complex compounds. The periodic table is used to find the atomic masses of the elements in the compound, which are then...
Professor Dave Explains
Nomenclature of Hydrated Salts
As long as we're naming stuff, let's name these hydrated salts! You know, like epsom salts?
Schooling Online
Chemistry Properties and Structure of Matter: Properties of Matter - Naming Monoatomic Ions
This lesson will introduce the rules for writing the names and chemical formulae of non-metal anions and metal cations, including metals with multiple positive oxidation states.
Definitions included: compound, cation, anion, IUPAC,...