AP Chemistry – Class 03

Date

• Friday, August 28th

Lab Day 02 – Conduct the Lab

Details

• We are using the BioRad SmartSpec Plus (not Spec 20)
• Wavelength used = 630 nm
• Stock Solution = 7.63 x 10^-6 M (Blue Dye #1)
• Measure the size of the cuvette to gauge how much solution you will need
• distilled water
• How do you make the proper dilution?
• What measuring device will you use for volume?
• Each group should spread out measurements -take a reading as a solution is generated
• Each group has its own blank
• do not assume that anything is clean
• location of glassware
• reminder about LNB (we are NOT writing a report now)

Mid-lab Questions

• how do you know the data is meaningful?
• how many trials do I need to conduct?
• how am I analyzing my data?

Homework

• finish all parts of Lab Report by September 2nd – turn in LNB