SciShow
Why Sex?
Hank gets into why sex is the preferred method of reproduction for most species - and it's not for the reasons you're thinking.
All Ears English
Small Talk Tips: Part 1 WHAT ARE YOU WATCHING?
Learn how to have an English conversation about movies and TV shows. This is a common small talk topic with people at work and in daily life.
Curated Video
How to find the Molecular Formula of a Chemical Compound
The molecular formula is the actual formula of a compound and can be found by comparing the mass of the molecular formula to the mass of the empirical formula to figure out how much bigger the molecular formula is compared to the...
Curated Video
Empirical Formulae From Percentage Composition | Chemical Calculations | Chemistry | FuseSchool
Learn the basics about Empirical formulae from percentage composition. What is an empirical formulae? How do you calculate a percentage composition? Find out more in this video! This Open Educational Resource is free of charge, under a...
Teacher's Pet
Percent Composition and Empirical Formulas
Learn how to calculate percent composition and find molecular formula from empirical data.
Weird History
The Tragedy Behind Twilight Zone: The Movie
One of the worst movie set accidents ever occurred during the filming of Twilight Zone: The Movie. The film is now mainly remembered for its tragic behind the scenes story. Steven Spielberg decided to make the hit television show into a...
Professor Dave Explains
Calculating the Formulas of Hydrated Salts
Some ionic compounds are coordinated to a specific number of water molecules in solution. But how many? How can we find out? We can't see molecules! Whatever will we do? Something very clever, as it turns out. Take a look!
TED Talks
TED: The fastest way to slow climate change now | Ilissa Ocko
Cutting methane is the single fastest, most effective opportunity to reduce climate change risks in the near term, says atmospheric scientist Ilissa Ocko. That's because, unlike carbon dioxide, methane's warming power doesn't come from a...
Wonderscape
Science Kids: The Amazing Circulatory System
This video is an educational lesson about the circulatory system. The teacher explains how the circulatory system works, including the functions and parts involved. The video covers topics such as the role of the heart, blood vessels,...
Curated Video
AWS Certified Cloud Practitioner (CLF-C01)- IP Addresses and Port Numbers – Part 2
In this video, we'll learn about IP Addresses and Port Numbers – Part 2. This clip is from the chapter "AWS Networking and Content Delivery" of the series "AWS Certified Cloud Practitioner (CLF-C01) [Updated for 2021]".This section is...
Rachel's English
English Vocabulary Challenge Day 13
You can improve your English vocabulary and English pronunciation by studying these vocab words, repeating them along with me to master each sound. We’ll study each word by focusing on how Americans actually pronounce it, and we’ll...
Berkeley University of California
Empirical Formula
Let's determine the molecular formula for skunk spray! High schoolers watch a video to learn how to calculate an empirical formula from given masses. The video then demonstrates how to use mass spectrum results to determine a...
Teacher's Pet
Percent Composition and Empirical Formulas
Investigate empirical formulas and their relationships to the composition of a compound. The lesson first demonstrates a percent composition calculation. It then defines an empirical formula and applies it to given masses to determine a...
Tyler DeWitt, PhD
Tyler De Witt: Writing Empirical Formula Practice
In this video you will practice writing empirical formulas for many molecular formulas. In order to write the empirical formula, you find the largest number you can divide all of the subscripts by, to reduce it as much as possible. You...
Khan Academy
Khan Academy: Chemistry: Example of Finding Reactant Empirical Formula
A video lecture solving a problem to find the empirical formula based on a chemical reaction. To find the empirical formula the video gives a step-by-step procedure to figure out the equation, molar mass, and the empirical formula. [17:41]
Khan Academy
Khan Academy: Chemistry: Molecular and Empirical Formulas
A video lecture explaining how to find the molecular and empirical formula knowing the percent composition of each element. The problem is solved in easy to follow steps. [9:30]
Khan Academy
Khan Academy: Chemistry: Another Mass Composition Problem
A follow-up to a previous module, this module gives a more complicated example of how to compute the empirical formula using mass composition. The video is a step-by-step review of the process of how to use the mass composition to find...