PreparED Study Materials
CHEM 220: Principles of Chemistry II
School: University of Washington
Number of Notes and Study Guides Available: 7
Notes
Study Guides
Videos
Conjugate Bases of Brønsted Acids: Formulas and Descriptions
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
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.
Tausonite's Unit Cell: Atoms & Formula Explained
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
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.
Chemical Formulas: CaI?, N?O?, SiO?, ZnCl? for Atom Ratios
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Unlock the world of chemical formulas and their atom ratios. Learn to write compounds like CaI?, N?O?, SiO?, and ZnCl? in this chemistry tutorial.
CS?, SO?, CH?, & CH?Cl: Are They Polar or Nonpolar Molecules?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the polarity of Carbon disulfide, Sulfur dioxide, Methane, and Chloromethane. Learn how molecular shape influences electron distribution. Understand which molecules possess a net dipole moment and which ones don't.
Oxidizing & Reducing Agents: Electron Exchange Demystified
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the world of oxidizing and reducing agents in chemistry. Gain a clear understanding of what they are and how they function without delving too deep into the subject matter.
Finding NaOH Molarity: Titration of 0.200L SO?-Derived H?SO? Solution
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Determine the molarity of a NaOH solution through titration with sulfurous acid. Starting with the ideal gas equation we derive the concentration of a 0.200L SO?-derived H?SO? solution. Concluding with a molarity of 1.64 M for NaOH using calculated values.











