Topics: Molar Mass, Balancing Reactions, and Using Stoichiometry
Through a combination of particulate-level representations and virtual lab activities, students learn how gravimetric analysis can be used to determine the concentration of various species in water. They then use this knowledge to test for sulfates in drinking water. Students use the virtual lab to determine which reactions form precipitates, balance chemical equations, and carry out inquiry to evaluate the concentration of sulfates in water.
The research reported here was supported by the Institute of Education Sciences, U.S. Department of Education, through Grant R305A100069 to WestEd. The opinions expressed are those of the authors and do not represent views of the Institute or the U.S. Department of Education.