Curated OER
2003 U.S. National Chemistry Olympiad Part III
For this chemistry Olympiad worksheet, pupils are given 2 lab problems to work on. They must explain their experiment they would carry out, show their data and write their results and conclusions of the lab and the process.
Frostburg State University
General Chemistry: Percent Compound in a Mixture
Resource contains and example problem and solution of how to compute percent compound within a mixture when given the mixture's mass and element percents.