The percent water in popcorn can be determined. Activity 2: Analyzing the "Pop" in Popcorn in the Gases module provides directions.
- A procedure for determining the percent fat and water in hot dogs is given by Tocci (1984).
- Students could investigate methods used for determining the elemental composition of various compounds. The use of spectra in compound identification is usually beyond the scope of first-year high school chemistry; however, an outstanding student may be interested in learning what kinds of information can be obtained from various spectral techniques (e.g., how atoms are connected from infrared and nuclear magnetic resonance spectra, how atoms are grouped based on how they "fall apart" from mass spectra).