PreparED Study Materials

CHEM 21592: General Chemistry 123

School: Eastern Michigan University

Number of Notes and Study Guides Available: 1

Notes

Videos

Calculating the Mass Percent Composition of Chloroform (CHCl?)
Stars

Want To Learn More? To watch the entire video and ALL of the videos in the series:

Add to cart

In this video, we delve into the concept of percent composition by mass, exemplified through the compound chloroform (CHCl?), which was once employed as an inhalation anesthetic despite its associated toxicity. By calculating the percent composition for each element within the compound, we gain valuable insights into its composition and its potential effects on health and properties.

Physical vs Chemical Changes: Understanding Reactions & Transformation
Stars

Want To Learn More? To watch the entire video and ALL of the videos in the series:

Add to cart

Discover the differences between physical and chemical changes using common examples. Understand how sugar reacts in various scenarios, and how metals undergo changes, either maintaining their substance or forming new compounds.

Weight% of Ba, K, Cl in Heated BaCl2·2H2O & KCl Mix
Stars

Want To Learn More? To watch the entire video and ALL of the videos in the series:

Add to cart

In this video we explore the process of calculating the weight percent of barium potassium and chlorine in a mixed sample of barium chloride dihydrate and potassium chloride. Through a step-by-step approach we examine the changes in sample weight after heating to 160°C breaking down the calculations for each elemental content.

Electrons in outer shell of: Potassium, Calcium, Aluminum
Stars

Want To Learn More? To watch the entire video and ALL of the videos in the series:

Add to cart

This video explains the importance of the number of valence electrons in an element's chemical behavior and demonstrates how to determine the valence electrons for potassium, calcium, and aluminum based on their positions in the periodic table. Valence electrons dictate an element's reactivity with other elements, making this knowledge essential for understanding chemical reactions.

Calculating Water's Freezing Point at Various Concentrations: A Chemis
Stars

Want To Learn More? To watch the entire video and ALL of the videos in the series:

Add to cart

Learn how to compute the freezing point of water at various solution concentrations using the freezing point depression formula. Uncover the relationship between concentration and the lowered freezing points for four distinct solutions. Equip yourself with essential knowledge on the effects of solute concentration on water's freezing behavior.

Understanding Electron Configurations of Ions: The Noble Gas Connectio
Stars

Want To Learn More? To watch the entire video and ALL of the videos in the series:

Add to cart

Unravel the electron configurations of diverse ions and discern their noble gas resemblances. Understand how atoms and ions strive for full outer electron shells for ultimate stability.

Textbook Solutions (0)

Top Selling Study Tools

×

Login

Login or Sign up for access to all of our study tools and educational content!

Forgot password?
Register Now

×

Register

Sign up for access to all content on our site!

Or login if you already have an account

×

Reset password

If you have an active account we’ll send you an e-mail for password recovery

Or login if you have your password back