Students find the percent water, calculate percent error and using simple steps of 1-4 find empirical formula for copper(II) sulfate crystals. Little or no prior knowledge of finding empirical formula necessary. Two forms of this lab included for student differentiation. Minutes in set up time. Lab written for Hotplate or Bunsen burner.
• Observe water leaving compound as steam
• Heat to constant mass
• Calculate percent water
• Re-hydrate the anhydrous compound
• Student Lab Sheet
• Student Lab Make-up Sheet for Absent Students
• Student Lab Sheet with Answers in Italics
• Lab Quiz - Use as exit ticket, next day warm-up or quiz
• Lab Quiz Answer Key
• Teaching Tips and Set-up Directions
This lab is included in Teacher Friendly Chemistry Binder 1 PDF/Word. Consider buying the WORD/ PDF:
Chemistry Lab Bundle: Teacher Friendly Chem Binder 1 PDF/Word 31 Labs 17 Inq.
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