CHEM 105: General College Chemistry

Explore the distinction between homogeneous and heterogeneous mixtures. Through real-world examples like baby oil, chocolate chip cookies, and wine, understand their uniformity, phases, and how components are distributed.

Understanding pH Values: In this video we break down the pH levels of various solutions. Discover the importance of acid strengths via Ka and pKa contrast weak vs. strong acids and learn the counterintuitive relationship between pOH and pH.

An in-depth analysis of the precision and accuracy in seam measurements by three apprentice tailors: X, Y, and Z, as they measure a pair of trousers. Understand how their measurements compare to the true length of 32.0 inches.

In this exploration, we delve into the fundamental units of various substances, whether they are single atoms, molecules, or formula units. We examine ionic compounds like Rb?O and Fe(NO?)?, characterized by formula units as their basic components, and covalent compounds like N? and N?F?, where molecules are the fundamental units.

Unpack the difference between quantitative and non-quantitative observations. Examples include a person's weight on the Moon and the depth a hand pump can reach. Learn why precise measurements are crucial in scientific studies.

Explore the chemical combination of nitrogen and fluorine to produce nitrogen trifluoride. Learn how to determine the limiting reactant and calculate the theoretical yield using stoichiometry principles.