Chemistry Honors – Class 05

Pennies

Dates

• Period B: Wednesday, September 3rd
• Periods D, G: Thursday, September 4th

Homework Review

• sig figs math
• units conversions
• Mega, Kilo, Milli, Micro, Nano (know these)
• Questions?

Handling Materials in Lab

• weigh boats
• drying and cleaning
• balace and “taring”

Density Activity

• Read section 1.9
• determine the density of three substances
• use balance, graduated cylinder
• record data in Notability
• Q: how much of each metal should you use?
• calculate the density of each
• enter your result on shared spreadsheet (LINK)
• Note – open Docs [LINK] then sign in and add the docs to your Drive
• calculate the Percent Error of your results (known values listed on sheet)
• Note – see problem 110 on page 40
• Record properly all work, showing properly

Homework

• Place PDF of lab in shared folder
• Exam on Monday / Tuesday for Chapter 1
• Review (notes) on 1.3, 1.5, 1.7, 1.9 (PDF in shared folder)