Friday, October 4, 2013

Selecting from filter paper, beaker & evaporating dish, how & in what order, could one separate samples of sand & saltObtained from a mixture of...

In the beaker, which contains the seawater and sand
mixture, you could remove the sand by pouring everything through filter paper. The sand
would be trapped by the filter paper and the seawater would pass through easily.
Next, in order to separate the salt from the water, one could simply place the seawater
in the evaporating dish and boil it. At 100 degrees Celsius, only pure water vapor will
evaporate. Salt will not change states at this temperature and thus remains behind.
Eventually, the salt will crystallize.

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Comment on the setting and character of "The Fall of the House of Usher."How does setting act as a character?

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