CHEM 155: Fundamentals of Chemistry

This video outlines the process of calculating the number of moles in various elemental samples. It begins by explaining the relationship between molar mass and atomic weight. Each sample's mass is divided by the respective element's molar mass to find the number of moles. It provides detailed calculations for four elemental samples: zinc (Zn), argon (Ar), tantalum (Ta), and lithium (Li), converting results to scientific notation where necessary. The script demonstrates how to determine the mole

Learn how to calculate the amount of Barium hydroxide, Ba(OH)?, needed to prepare a specific molar concentration. This tutorial breaks down the relationship between moles of hydroxide ions and moles of Ba(OH)?, guiding users through each step for precise results. Embrace the essence of molarity in solution preparation.

Delve into the complex world of enzymes and explore the implications of their reversible inhibition, shedding light on whether it's advantageous or detrimental to biological processes."

Discover how to calculate the number of moles of hydrogen in different chemical samples, including H?O, NH?, N?H?, and C??H??.

Unravel the concept of propeller twist and its role in aviation and marine propulsion. We'll delve into the science and engineering behind this intriguing phenomenon, shedding light on its applications and significance.

Learn how to determine the weight of white gas carried by a backpacker using its density. A valuable skill for hikers and campers.