PreparED Study Materials
BIOL CH 14: 14CL - General and Organic Chemistry Laboratory II
School: University of California - Los Angeles
Number of Notes and Study Guides Available: 1
Notes
Videos
Classify: (a) Mixture (b) Element (c) Mixture (d) Compound
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In this video, we classify substances as elements, compounds, or mixtures, with air and soy sauce as mixtures, iron as an element, and table salt as a compound.
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.
Unveiling Earth's Crust: Calculating Silicon Mass
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Explore the fascinating process of calculating the mass of silicon in Earth's crust. Learn how to convert Earth's total mass to grams, determine the crust's mass percentage, and find the silicon's mass within the crust. Discover the scale of silicon's presence in our planet's outer layer.
Homogeneous vs Heterogeneous Mixtures: Examples & Classification Expla
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Explore the distinction between homogeneous and heterogeneous mixtures. Through real-world examples like baby oil, chocolate chip cookies, and wine, understand their uniformity, phases, and how components are distributed.
Comparing pH: Acid Concentrations Strength Ka pKa & pOH Explained!
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Understanding pH Values: In this video we break down the pH levels of various solutions. Discover the importance of acid strengths via Ka and pKa contrast weak vs. strong acids and learn the counterintuitive relationship between pOH and pH.
Diluting a 5.5 M KCl Solution to 0.100 M
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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.