Tyler DeWitt, PhD
Tyler De Witt: Converting Between Moles, Atoms, and Molecules
How many atoms in 5.5 moles? How many moles is 4.6 x 10^24 sulfur atoms? In this video Tyler DeWitt helps you solve problems like these--converting back and forth between moles and the number of atoms or molecules. DeWitt will use both a...
Tyler DeWitt, PhD
Tyler De Witt: Calculating Molecular Formula From Empirical Formula
This video helps viewers learn how to calculate molecular formula for a compound when you are given its empirical formula and its molar mass.ca [9:08]
Tyler DeWitt, PhD
Tyler De Witt: Converting Between Moles, Atoms and Molecules Part 2
In this video viewers will do more practice problems, converting between moles, atoms, and molecules. This is the second part of the video. [6:58]
Tyler DeWitt, PhD
Science With Tyler De Witt: Ebola Virus Explained
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....
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...
Tyler DeWitt, PhD
Tyler De Witt: Empirical Formula and Molecular Formula Introduction
In this video viewers will learn about what empirical formula and molecular formula are and how they are different. The video also teaches about writing the empirical formula for a compound when given the molecular formula. Molecular...
Tyler DeWitt, PhD
Science With Tyler De Witt: Advanced Density Problem 1
Learn how to solve for density when you need to calculate the volume of a cube. [2:49]
Tyler DeWitt, PhD
Science With Tyler De Witt: Significant Figures Made Easy!
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]
Tyler DeWitt, PhD
Science With Tyler De Witt: Atomic Mass: How to Calculate Isotope Abundance
This tutorial will go through the algebra and reasoning to figure out the amount of abundances of the isotopes, in percentages and in decimals.
Tyler DeWitt, PhD
Science With Tyler De Witt: Significant Figures and Zero (1.3)
When figuring significant digits, use this tutorial to help figure out how to deal with zeros. [7:36]
Tyler DeWitt, PhD
Science With Tyler De Witt: Scientific Notation Practice Problems
A session of scientific notation practice problems in action. [13:31]
Tyler DeWitt, PhD
Science With Tyler De Witt: Converting Units With Conversion Factors
Learn how to convert units using conversion factors and canceling units in dimensional analysis. [12:46]
Tyler DeWitt, PhD
Science With Tyler De Witt: Density Practice Problems
Learn how to use the density number like a conversion factor, to solve for mass or volume. Watch this video after the density introduction or before the more complicated video on density exercises that has unit conversion. [8:55]
Tyler DeWitt, PhD
Science With Tyler De Witt: Vsepr Theory: Common Mistakes
Understand how to determine the shape or geometry of a molecule using the VSEPR rules, for valence shell electron pair repulsion.
Tyler DeWitt, PhD
Science With Tyler De Witt: Multiple Conversion Factors (Part 2)
In this tutorial, find out how to do conversion with numbers that are fractions. [12:30]
Tyler DeWitt, PhD
Science With Tyler De Witt: Vsepr Theory Part 2: Trigonal Bipyramidal Family
In this tutorial, take a look at diagrams of the VSEPR shapes, and examine bond angles for each structure. [15:06]
Tyler DeWitt, PhD
Science With Tyler De Witt: Scientific Notation: Multiplication and Division
Learn how to multiply and divide numbers that are written in scientific notation. [5:30]
Tyler DeWitt, PhD
Science With Tyler De Witt: Scientific Notation: Introduction
Scientific notation is a way to express very large and small numbers with exponents as a power of ten. In this tutorial, learn to convert numbers into and out of scientific notation. [13:56]
Tyler DeWitt, PhD
Science With Tyler De Witt: Significant Zero Practice Problems (1.4)
Join Youtube chemistry tutor, Tyler DeWitt, do practice problems to work on significant figures with zeros. [8:09]
Tyler DeWitt, PhD
Science With Tyler De Witt: Immune System: Natural Killer Cell
You Tube animation highlights the importance of Natural Killer Cells in the fight against cancer and other diseases. [3:01]
Tyler DeWitt, PhD
Science With Tyler De Witt: Counting Atoms: Intro to Moles Part 2
Learn about moles to figure out how many atoms you have in something using the periodic table, molar mass, and Avogadro's number. [10:08]
Tyler DeWitt, PhD
Science With Tyler De Witt: Understanding Conversion Factors
Take a look at how conversion factors work and what the math means. Understand the unit conversions in a problem to make judgements about the results. [10:14]
Tyler DeWitt, PhD
Science With Tyler De Witt: Converting Units Using Multiple Conversion Factors
Learn how to combine multiple conversion factors into a row so that you can convert units in more than one step using the factor label method or dimensional analysis. [10:04]
Tyler DeWitt, PhD
Science With Tyler De Witt: Vsepr Theory: Introduction
This is an introduction to the basics of VSEPR Theory. In this video, learn about the following shapes: linear, trigonal planar, bent, tetrahedral, and trigonal bipyramidal.