PreparED Study Materials
CHEM 1121: Introductory Chemistry II
School: University of Missouri - St. Louis
Number of Notes and Study Guides Available: 2
Notes
Videos
Rutherford's Gold Foil: The Pivot to the Modern Nuclear Atom Model
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Discover Rutherford's pivotal Gold Foil Experiment and its impact on atomic theory. Unveil the discrepancies with the Plum Pudding Model. Grasp the birth of the nuclear atom model through unexpected alpha particle deflections.
What is a propeller twist?
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Unravel the concept of propeller twist and its role in aviation and marine propulsion. We'll delve into the science and engineering behind this intriguing phenomenon, shedding light on its applications and significance.
Tausonite's Unit Cell: Atoms & Formula Explained
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Unpack the intricacies of solid-state chemistry, focusing on the unit cell structure of tausonite. Discover its empirical formula, atomic arrangement, and the unique coordination patterns of titanium and strontium with oxygen atoms.
Comparing Viscosity: Why C5H11OH is 12x Thicker than C6H14 at 20°C
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Explore the intriguing contrast between Pentanol and Hexane's viscosity at 20 degrees Celsius. Uncover how molecular interactions influence a liquid's 'thickness' and discover why similar molecular weights can lead to vastly different substance properties
From CH? to C?H?: Decoding Molecular Formula with Molar Mass
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Discover the process of determining a compound's molecular formula from its empirical formula and molar mass. Understand the calculations and reasoning behind deriving C?H? from the empirical formula CH? with a molar mass of 56.11 g/mol. Gain insight into fundamental chemistry concepts and computations.
Molar Mass Calculation: Sr(OH)2 N2O3 NaClO3 Cr2O3 Explained!
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In this chemistry tutorial learn how to calculate the molar mass of various compounds using atomic masses from the periodic table. Discover the molar mass for compounds such as Strontium Hydroxide Dinitrogen Trioxide Sodium Chlorate and Chromium(III) Oxide. A concise guide to understanding molar masses and their real-world applications.












