PreparED Study Materials
CHEM 151: General Chemistry Lab 1
School: Washington University in St. Louis
Number of Notes and Study Guides Available: 1
Notes
Videos
Counting Chlorine Atoms in Key Chemical Compounds: A Detailed Breakdow
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Uncover the count of chlorine atoms in various chemical compounds. Grasp the calculations in Carbon tetrachloride, Calcium chloride, Phosphorus trichloride, and Sodium chloride. Gain clarity on atomic count across multiple molecules.
Why is a short RNA primer needed for replication?
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Unlocking the Mystery of Short RNA Primers in DNA Replication: Discover the essential role they play and why they are a crucial component in the replication process. Join us in this video as we delve into the fascinating world of molecular biology and DNA replication.
Understanding Barometers: How Do They Measure Pressure?
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Join us in this enlightening video as we delve into the inner workings of barometers. Discover how these essential weather instruments operate, using a column of mercury to measure pressure. We'll explore the principles behind this ingenious device and help you understand the science behind pressure measurement. Whether you're a weather enthusiast or a science lover, this video will provide valuable insights into the fascinating world of barometers.
Understanding Key Assumptions of Kinetic Molecular Theory in Detail!
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Dive into the Kinetic Molecular Theory of Matter understanding how atoms and molecules possess kinetic energy which we measure as temperature. Explore the five core assumptions including the constant random motion of gas particles and the relation between kinetic energy and temperature. Demystify the concepts of particle collisions intermolecular interactions and the universal behavior of gases at given temperatures
Quantifying Atoms Molecules & Moles: A Comprehensive Chemistry Guide
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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
Dilution Calculations: Copper(II) Nitrate, Calcium Chloride, Lithium C
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Learn how to perform dilution calculations for solutions, including copper(II) nitrate, calcium chloride, and lithium carbonate, to achieve specific concentrations.

