Primary Productivity Lab- modified by Sean McGlynn
Students will use LaMotte Test Kits to determine the concentration of dissolved oxygen (DO) in various water samples. The process involves adding some chemicals to the water to “fix” the free oxygen (O2). Once the O2 is fixed, they will add an acid powder, some starch, and titrate to determine the DO. The endpoint of the titration is fast and dramatic, and easy to see.