Friday, January 20, 2012

Finished the unit today

Today we finished our conceptual journey through molar quantities.  We practiced and reviewed percent composition and determining an empirical formula.  We also learned how to use empirical formulas and molecular mass to determine a molecular formula.  Finally, we used our conceptual knowledge in the lab by determining the percent by mass of water in three different hydrated salts.  Don't forget that we have our unit test on Tuesday.
Study and Be prepared!

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