Day 2 Fractional Distillation
Students did separation.
I asked students to test density and flammability of the two liquids.
We skimped on this lab and only used 2 test tubes. Should have used 3. Several students swapped out test tubes before they collected any liquid or found water to be flammable!
Students still had problems measuring densities accurately. I do not think they are being careful about reading the volumes at the base of the meniscus.
Monday, December 27, 2010
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