CHEM 117: Chemical Concepts and Applications

School: University of North Dakota

Number of Notes and Study Guides Available: 0

Videos

Determining Base Concentration Using KHP: Indicator Choice Solution

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Discover how to choose the right indicator for a titration involving Potassium hydrogen phthalate (KHP) and a strong base. Grasp the calculations from molar mass to pH and understand why Thymolphthalein is the ideal choice for a change near pH 8.95.

Iron Bar: Mass Change and Rust Formation

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Learn about mass changes in an iron bar when exposed to moist air, including the formation of rust (Fe?O?) and how to calculate the final mass.

Determining Oil & Ball Bearing Density: Physics Explained

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Discover how to determine the density of mineral oil and a metal ball bearing using a graduated cylinder. Learn the method of calculating the mass difference and volume to deduce the density and radius of the ball. Watch a detailed physics experiment explained step by step.

Decoding Acid Formulas: From Phosphoric to Sulfurous - Chemistry Insig

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Explore the distinct chemical formulas of various acids like phosphoric, hydrobromic, and sulfurous acids. Understand their practical applications, from flavoring agents to sanitization in brewing. Highlighting their unique molecular makeup, learn the critical roles they play.

Conjugate Bases of Brønsted Acids: Formulas and Descriptions

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This video delves into the fundamental concept of conjugate bases in the context of the Brønsted-Lowry theory of acids and bases, explaining how when acids donate protons, they transform into their respective conjugate bases. This understanding is exemplified through the specific reactions of various compounds, illustrating how each Brønsted acid, upon proton donation, gives rise to its corresponding conjugate base.

Crafting Ionic and Net Ionic Equations: Step-by-Step Guide with Exampl

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Discover how to craft balanced, complete ionic, and net ionic equations for various chemical reactions. Learn the significance of aqueous ions and solid state indicators in these equations.