PreparED Study Materials
Notes
Videos
Comparing Bond Types: Ethane's Nonpolarity vs. Fluoromethane's Ionic L
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Examine the nature of bonds in methylamine, ethane, fluoromethane, and methanol. Identify ethane's nonpolar covalent bond and understand why fluoromethane's bond leans toward the ionic spectrum. Grasp essential concepts in molecular bonding with this deep analysis.
Mass of Fluorine in 24.6g SnF? Toothpaste: A Breakdown
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Tin(II) Fluoride in Toothpaste: Dive into the chemistry of Tin(II) Fluoride commonly used in toothpaste to prevent tooth decay. Understand molar mass calculations stoichiometry and determine the fluoride content in a given compound
Do Rusting and Burning Violate Conservation of Mass?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
This video explores the processes of rusting in iron and burning a match, addressing whether the observed changes in mass violate the law of conservation of mass, and explains how these processes align with the law.
Calculating Ksp for Ca3(PO4)2 at 25°C: Step-by-Step Guide
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Unravel the concepts of 'Molar Solubility' and 'Solubility Product' to gauge salt solubility. Explore how Calcium Phosphate dissociates in solutions and calculate its unique Ksp value.
Speed of Light Explained: Earth, Billions of Km & the Concept of Light
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the incredible speed of light as it zips 7.5 times around Earth in just a second! Marvel at its daily and yearly travels, equating to billions and trillions of kilometers. Dive deeper into the concept of a 'light year' and its significance in astronomical measurements.
Iron Bar: Mass Change and Rust Formation
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Learn about mass changes in an iron bar when exposed to moist air, including the formation of rust (Fe?O?) and how to calculate the final mass.





