CH05 – Foil Lab

Dates

• P4 – Monday, January 22nd
• P5 – Monday, January 22nd
• P7 – Monday, January 22nd

Aluminum Foil Lab – Procedure

Part 1 – Density

• make sure the aluminum “shot” is dry
• make sure you take care to read graduated cylinder
• graph of mass (y) vs volume (x) will give density (slope)
• OK to use spreasdsheet to graph and generate line
• more than three (3) trials required (more is better)

Part 2 – Thickness

• how will you use density for part 2?
• what measurements do you need to determine thickness?
• no water / glassware required

Aluminum Foil Lab – Processing

• format of calculations section
• sig figs – how to apply
• units – how to show

Homework

• Study for the quiz

Quiz

• Start next class with quiz
• one question = sig figs
• one question = dimensional analysis
• sample from last year posted in folder
• I will provide conversion factors (and prefixes)