Science With Tyler De Witt: Counting Atoms: Intro to Moles Part 2

This tutorial will go through the algebra and reasoning to figure out the amount of abundances of the isotopes, in percentages and in decimals.

When does 2+1=2? When calculating in moles, you sometimes have calculations that appear to defy basic math. The 13th video of 29 explains the pairing and combining of molecules and how to calculate their molecular masses. It also details...

What does the Ebola virus actually do in your body? Why is it so dangerous and why does it kill so many people? Take a look at the apocalyptic war that rages in the body after an infection by the Ebola virus and the soldiers fighting....

This introduction to significant figures discusses basics of multiplication and division. [5:01]

A tutorial which explains what moles are and why they are important. Learn how to abbreviate the mole number (Avogadro's number) using scientific notation, and how giant this number is. [10:50]

In this tutorial, find out how to calculate atomic mass, by multiplying the atomic weight of an atom by the percent abundance expressed as a decimal.

In this tutorial, find out how to do conversion with numbers that are fractions. [12:30]

Don't be confused by significant figures. Let Tyler DeWitt introduce significant figures, and more specifically how to round for multiplication and division using significant digits. [7:10]

Join Youtube chemistry tutor, Tyler DeWitt, do practice problems to work on significant figures with zeros. [8:09]

The video tracks formation of snowflakes from their origins in bits of dust in clouds that become droplets of water falling to Earth. As each snowflake rises and falls through warmer and cooler air, it thus develops its own distinctive...