CHEM 34578: General Chemistry 1

School: Ball State University

Number of Notes and Study Guides Available: 0

Videos

Pure Substances vs. Mixtures: Classifying Based on Composition & Distr

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Understand the fundamental distinctions between pure substances and mixtures. Unpack the definitions and real-world examples of elements, compounds, homogeneous, and heterogeneous mixtures.

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.

Ionic Character Comparison: Analyzing NaBr vs. HBr and BrCl vs. FCl

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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.

Determining Formula Mass: Step-by-Step Approach Using Atomic Masses

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Discover the method to determine the formula mass for various compounds. Learn about the importance of atomic masses and their role in compounds like Aluminium sulfate, Diphosphorus Trioxide, and more. Understand the step-by-step approach to accurately calculate molecular weights.

Breaking Down Mixtures: Finding Mass Percent of Sodium Compounds

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Uncover the method to determine mass percentages of Sodium Bromide and Sodium Sulfate in a mixture using the given Sodium content. Walk through a step-by-step calculation leveraging molar masses to derive the composition. Discover the resulting mass percentages: 23.85% for Sodium Bromide and 76.15% for Sodium Sulfate

Molecule Count in 0.334 g of C?H?: Ethane Analysis

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This instructional video guides you through the process of determining the number of molecules in a given sample. It illustrates the conversion from grams to moles using the molar mass of the substance and then to molecules using Avogadro's number, providing a practical example with ethane (C?H?) to calculate approximately 6.67 x 10²¹ molecules in a 0.334 g sample.