PreparED Study Materials
CHEM 10055: Molecules of Life
School: Kent State University
Number of Notes and Study Guides Available: 3
Notes
Videos
Chips Nutritional Energy and Body Fat Conversion
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Discover how to calculate the nutritional energy in a bag of chips, and learn the science behind converting excess energy into body fat.
Calculate a Building's Age Using Nickel-63 Decay
Want To Learn More? To watch the entire video and ALL of the videos in the series:
The scenario involves an archaeologist analyzing iron in an old building containing nickel-63, which has a known half-life of 92 years. With only 0.78% of the original nickel-63 remaining, the goal is to estimate the year when this discovery was made. We delve into the calculations and principles of first-order decay reactions.
Calculating Formula Masses: From Barium Bromide to Hydrobromic Acid
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Understand the process of calculating formula masses for various compounds. This video breaks down the atomic masses for elements in barium bromide, dinitrogen trioxide, copper(I) sulfate, and hydrobromic acid. Master the method of summing up the masses considering atom count in each formula.
KOH Volume Needed to Neutralize H?SO? Samples
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Discover the precise KOH volumes to neutralize H?SO? samples with various concentrations. Learn about the acid-base reaction dynamics and stoichiometry.
Calculating Percent Composition: Using Molecular Formulas & Atomic Mas
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Understand the process of calculating percent composition using the molecular formula. Grasp the methodology with compounds like C2H4O2, CH2O2, and more. Discover how atomic masses influence the mass percent of elements in various compounds.
Heat Absorption: Lead Weight's Final Temperature
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the process of heat absorption and discover how to calculate the final temperature of a lead fishing weight after absorbing a specific amount of heat.