Thursday, November 5, 2009

chem lab: you light up my life

Yesterday, we did a lab called You Light Up My Life. In this lab we first had to make predictions in a table. These predictions were if the substance (that was listed on the paper) would conduct electricity, if the substance would dissolve in water, or if the substance would conduct electricity while it was dissolved in water.After making these predictions we had to actaully test if the substances, water, foil, sugar, salt, sand, wax, isoprpyl alcohol, copper, calcium chloride, and sodium sulfate conduct electricity, dissolve in water, and conduct electricity while they were dissolved in water. My predictions were not that off compared to the real results. I learned that the metals, copper and foil did not dissolve in water but they conducted electricity. Also i learned that the ionic compounds that were all solids conduct electricity while dissolved in water.

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