CHED 393 |
| This project determined levels of sulfate in a pond at Florida International University, and tested the significance of time and location. Standards of Sulfate at different concentrations (0 to 70 mg/L) were prepared to construct a calibration curve using a Turbidimetric Experiment (LED 470 nm) with MicroLab Interface. Samples were collected at morning and afternoon from four different locations in the pond. Collected samples were analyzed using the Turbidimetric method. The matrix obtained was analyzed using SPSS for Windows. Regression analysis showed that only time was a significant variable (probability of F <<0.05). The average morning level was 41 ppt and in the afternoon 51.3 ppt. The experimental results were contradictory to the research prediction of sulfate levels. The presentation demonstrates the use of computer software and interfaces in constituting an innovative way to construct knowledge in Chemistry and develop thinking skills in context with other natural sciences. |
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Undergraduate Research Poster Session: Chemical Education
11:00 AM-1:00 PM, Monday, March 26, 2007 Hyatt Regency Chicago -- Riverside Center, Poster
Division of Chemical Education |