Ms. Hudson Chemistry 521

October 4, 2016

Chemistry 521 Tuesday, October 4

Filed under: Uncategorized — lhudson @ 10:27 am
  • Reviewed Mole to Mass and Mass to Mole Conversions (SmartBoard)
  •  Returned “The Mole Lab” to students.
  • Reviewed “Percentage Composition” and corrected percentage composition of  zinc phosphate, copper (II) sulfate pentahydrate, and ammoniun phosphate.
  • Reviewed the format of lab book and explained expectations for the first lab “Chemical Reactions”. Must be written up to the end of the Procedure in order to go to the lab on Wednesday, October 5.
  • Completed Questions #1-6 on Sheet “Sections 3.1, 3.2 and 3.3 Percentage Composition, Empirical Formula and Molecular Formula”
  • Completed Examples #1-3 “Determining the Empirical Formula of a Compound”
  • Determine the empirical formula for each of the following compounds:
    • 70.0% Fe        30.0% O
    • 56.4% K       8.7%  C     34.9% O
    • 10.04% C    0.84%  H    89.12% Cl
  • Assignment “Mole/Percent Composition Assignment” due on Friday, October 7.

Create a free website or blog at

%d bloggers like this: