PreparED Study Materials
Videos
Ranking WO? Rb?SO? Pb(C?H?O?)? RbI by Decreasing Formula Mass
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the method to rank compounds like Tungsten Dioxide Rubidium Sulfate Lead Acetate and Rubidium Iodide based on their formula masses. Learn about the significance and calculation of a compound's formula mass. Conclude with an ordered list from heaviest to lightest based on our calculations
Diluting a 5.5 M KCl Solution to 0.100 M
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Learn the steps to make a 2.5 L of 0.100 M KCl solution from a 5.5 M stock solution in this easy-to-follow tutorial.
Quantifying Atoms Molecules & Moles: A Comprehensive Chemistry Guide
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Grasp the fundamental concept of moles in chemistry by equating it to the universally understood notion of a dozen. This video breaks down the usage of Avogadro's constant demonstrating calculations from moles to particles and vice versa. Using real-world examples like Carbon atoms Sulfur Dioxide molecules and Iron atoms viewers gain a clear understanding of moles and particle conversions
Understanding Microwaves: Boiling Water's Time and Photon Count
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
This video breaks down the process of calculating the time and number of photons required to boil water in a microwave. Using given power, wavelength, and water specifics, we determine both energy needs and photon count.
Ionic Character Comparison: Analyzing NaBr vs. HBr and BrCl vs. FCl
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the analysis of ionic character in compounds based on electronegativity differences. Learn about the contrasts between NaBr vs. HBr and BrCl vs. FCl. Grasp why NaBr and FCl showcase greater ionic character than their paired compounds.
Strong Base Comparison: H?S?, CH?O?, CH?OH, Cl?, CH?COO?, CH?CHClCOO
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the reactivity of different bases in this chemistry comparison. We'll analyze the strength of H?S?, CH?O?, CH?OH, Cl?, CH?COO?, and CH?CHClCOO? in various reactions.




