PreparED Study Materials
CH 106: Introductory Chemistry 1 Lab
School: University of Alabama at Birmingham
Number of Notes and Study Guides Available: 1
Study Guides
Videos
Molecular Geometry & Polarity: Why CO? & CCl? Are Nonpolar Explained
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Uncover the intriguing relationship between molecular geometry and polarity in chemistry. Using CO? and CCl? as examples, learn how polar bonds can result in nonpolar molecules. Recognize the role of symmetry in determining molecular polarity.
Nickel(II) Nitrate Solution Composition Analysis
Want To Learn More? To watch the entire video and ALL of the videos in the series:
In this analysis, we determine the composition of a solution prepared by dissolving 12.15g of nickel(II) nitrate in 175mL of water (density 1.00 g/mL). The mass percent of nickel(II) nitrate is found to be approximately 6.50%, and the mole fraction of nickel(II) ions in the solution is calculated as 0.00672.
Molecular Lewis Structures for CH?, CO?, H?Se, and NH?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
In this video, we demonstrate the creation of Lewis structures for methane, carbon dioxide, hydrogen selenide, and ammonia, highlighting the arrangement of atoms and bonds in each molecule. The video emphasizes the importance of Lewis structures in visualizing atomic bonding and the presence of lone electron pairs.
Calculating Percent Error: Insights into Experiment Accuracy & Refinem
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Discover the importance of calculating percent error to assess the precision of experiments. Through real-world examples like measuring alcohol's density and the mass of gold, learn how this value offers insights into measurement accuracy and ways to refine methods.
Diluting a 5.5 M KCl Solution to 0.100 M
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Learn the steps to make a 2.5 L of 0.100 M KCl solution from a 5.5 M stock solution in this easy-to-follow tutorial.
Understanding Microwaves: Boiling Water's Time and Photon Count
Want To Learn More? To watch the entire video and ALL of the videos in the series:
This video breaks down the process of calculating the time and number of photons required to boil water in a microwave. Using given power, wavelength, and water specifics, we determine both energy needs and photon count.