Chemistry Honors – Class 06

Woobie Time

Dates

• Periods B, D: Friday, September 4th
• Period G: Monday, September 8th

Activity Review

• Data – anything direct from the lab
• Calculations – anything interpreted from the lab
• Data table? Show work?

Determine the Densities of These

• Sample A: V1 = 23.4 mL, V2 = 23.7 mL, m = 1.91 g
• Sample B: V1 = 23.4 mL, V2 = 23.8 mL m = 1.91 g
• Sample C: V1 = 23.4 mL, V2 = 45.7 mL, m = 85.22 g

Chapter Review – Learning Objectives

• Write the SI prefixes, symbols, exponent: mega, kilo, milli, micro, nano
• Calculate the density given volume and mass information
• Determine the proper measurement using a measuring device
• Calculate the percent error of a measurement
• Identify the size and source of uncertainty in a measurement
• Perform calculations using the rules of significant figures
• Write numbers using scientific notation and standard notation
• Use dimensional analysis to convert between units
• Treat units with respect

In-Class Activity

• Sample problems – Ch. 1 (33 – 40, 71, 72)
• Note – some have already been assigned
• Note – answer key in Schoology resrouce folder for the course
• Attempt some that you haven’t yet done already (pick and choose)

Homework

• Study for the exam