PreparED Study Materials
CHEM 1140: General Chemistry Lab
School: St. Edward's University
Number of Notes and Study Guides Available: 0
Videos
What are the ground-state electron configurations of Ge, Fe, Zn, Ni, W
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
This video provides ground-state electron configurations for various elements, including germanium, iron, zinc, nickel, tungsten, and thallium, based on their atomic numbers.
Chromium & Oxygen: Limiting Reactants & Chromium(III) Oxide Formation
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Unravel the reaction of chromium and oxygen forming chromium(III) oxide. Examine different scenarios to determine the limiting reactant using stoichiometric ratios. Understand how to predict product amounts through these calculations.
Molarity Calculations for Various Solutions: CH?OH, CaCl?, C??H?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Learn how to calculate the molarity of different solutions containing methanol, calcium chloride, and naphthalene. Essential for chemistry enthusiasts.
Double Assurance: Fidelity in Protein Synthesis
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the Intricate Checks and Balances in Protein Synthesis Fidelity: Join us in this video to unravel the two critical moments when the accuracy of protein synthesis is assured, shedding light on the 'how' and 'when' of this essential process.
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Unveiling the Water-to-Salt Ratio in Barium Chloride Hydrate
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the process of determining the number of water molecules in a barium chloride hydrate. Through a reaction with sulfuric acid, the video highlights how to derive the formation of barium sulfate and its mass calculations. A comprehensive chemical analysis leads to finding the elusive 'x' value, revealing the water-to-salt ratio.



















