CHEM 103080: General Chemistry

Discover the differences between physical and chemical changes using common examples. Understand how sugar reacts in various scenarios, and how metals undergo changes, either maintaining their substance or forming new compounds.

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.

Uncover the count of chlorine atoms in various chemical compounds. Grasp the calculations in Carbon tetrachloride, Calcium chloride, Phosphorus trichloride, and Sodium chloride. Gain clarity on atomic count across multiple molecules.

Master metric unit conversions with step-by-step examples, including cm to meters, g to kilograms, cm to millimeters, and mL to liters.

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

Learn about mass changes in an iron bar when exposed to moist air, including the formation of rust (Fe?O?) and how to calculate the final mass.