PreparED Study Materials
CHEM 1251: General Chemistry 1
School: University of North Carolina - Charlotte
Number of Notes and Study Guides Available: 14
Notes
Study Guides
Videos
Decoding Ions: Al³?, S²?, I?, Ag? & Their Electron-Proton Dynamics
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Break down the mysteries of ions like Al³?, S²?, I?, and Ag?. Discover how the electron count impacts ion charge by exploring Aluminium, Sulfur, Iodine, and Silver. Enhance your understanding of protons, electrons, and their relationship in ions.
Weight% of Ba, K, Cl in Heated BaCl2·2H2O & KCl Mix
Want To Learn More? To watch the entire video and ALL of the videos in the series:
In this video we explore the process of calculating the weight percent of barium potassium and chlorine in a mixed sample of barium chloride dihydrate and potassium chloride. Through a step-by-step approach we examine the changes in sample weight after heating to 160°C breaking down the calculations for each elemental content.
Drawing Open-Chain Structures: A Visual Guide to Four Sugars
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Learn how to draw open-chain structures for various sugars, from ketotetrose to amino sugars. This video offers visual demonstrations of ketopentose, deoxyaldohexose, and more, highlighting key molecular differences.
Identify the 3' and 5' ends of the DNA segment AGTCAT
Want To Learn More? To watch the entire video and ALL of the videos in the series:
This video discusses the fundamental concept of DNA structure, focusing on the identification of the 3' and 5' ends of a DNA segment, specifically highlighting the sequence AGTCAT and its importance in understanding DNA strand direction for processes like replication and transcription.
Chromium(III) Oxide Reaction: Calculating Precise Quantities
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Learn the art of precise chemical calculations in this video. Discover how Chromium(III) oxide reacts with hydrogen sulfide to form chromium(III) sulfide and water, all while unraveling the necessary steps to determine the exact quantities involved.
Mastering Molar Mass: Calculations for Key Chemical Compounds
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Discover how to calculate the molar mass of various chemical compounds, including Mercury(I) chloride, Calcium sulfate dihydrate, Chlorine pentoxide, and Sodium hydrogen sulfate. Learn the step-by-step process and atomic mass calculations for accurate results.