PreparED Study Materials

CHEM 107: Intro to Chemistry

School: Florida Atlantic University

Number of Notes and Study Guides Available: 1

Notes

Videos

Molecular Geometry & Polarity: Why CO? & CCl? Are Nonpolar Explained
Stars

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

Add to cart

Uncover the intriguing relationship between molecular geometry and polarity in chemistry. Using CO? and CCl? as examples, learn how polar bonds can result in nonpolar molecules. Recognize the role of symmetry in determining molecular polarity.

Understanding Reaction Rate Decrease Over Time
Stars

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

Add to cart

This explanation delves into the phenomenon where the reaction rate decreases over time due to the decrease in reactant concentration, resulting in fewer successful collisions and reactions, without revealing specific examples or findings.

Lattice Energy: Always Positive; Hydration Energy: Always Negative
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 clarify why lattice energy in solids is always a positive value due to the energy needed to separate ions making it an endothermic process. On the flip side hydration energy is always negative as it releases heat when ions dissolve in water making it an exothermic reaction. We use sodium chloride as a real-world example to illustrate these crucial thermodynamic concepts

Mole Count in Elemental Samples (Zn, Ar, Ta, Li)
Stars

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

Add to cart

This video outlines the process of calculating the number of moles in various elemental samples. It begins by explaining the relationship between molar mass and atomic weight. Each sample's mass is divided by the respective element's molar mass to find the number of moles. It provides detailed calculations for four elemental samples: zinc (Zn), argon (Ar), tantalum (Ta), and lithium (Li), converting results to scientific notation where necessary. The script demonstrates how to determine the mole

Producing Ammonium Sulfate: Calculating the Required Ammonia
Stars

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

Add to cart

Discover the process to determine the quantity of ammonia (NH?) required to produce a specific amount of ammonium sulfate ((NH?)?SO?). Through a step-by-step explanation, learn the application of the balanced chemical equation and molar mass conversions. Transform theoretical chemistry into practical knowledge with this insightful guide.

What makes bubbles when water boils?
Stars

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

Add to cart

When water boils, bubbles rise to the surface, but what's in these bubbles? Let's evaluate the options. Option d, water vapor, is correct; the bubbles during boiling are primarily composed of water vapor, the gaseous state of water.

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