CH11 – Percent Composition

Dates

• P4 – Friday, February 2nd
• P5 – Monday, February 5th
• P7 – Monday, February 5th

Lab Recap

• lab calculations
• format? see posted examples
• extending – how can you explain differences?
• Lab – Analysis section (2 parts)
• All parts in LNB (due on Thu / Fri)

New Idea – Percent Composition

• sometimes I need the mass breakdown of a compound
• process assumes ONE mole
• follow the steps – show all work!
• example

Homework

• Ch. 3 (73a, 74)
• spread out your work!
• Work on the Lab in LNB