- Go over “Significant Zeros” WS.
- Quiz #1 on unit conversions and significant figures.
- Lab: Find the Thickness of a Sheet of Aluminum Foil What is the Thickness of a Sheet of Aluminum Foil – you will be assessed on the precision of your measurements and how you applied sig fig rules in your calculations. Here is a sample assessment sheet: Aluminum Foil Lab Assessment Sheet

# Monthly Archives: September 2018

# Rate Law

- Go over WS “Rate of Reactions” POGIL Rate of Reaction
- I will be able to apply the rate law. See class notes here: The Rate Law
- I will be able to manipulate the rate of reaction.

What do you observe? What could you measure? What could you change? In groups of 3-4, choose one factor you would change and decide how you would measure the effect of the change. Be prepared to carry out your experiment next class.

4. Do: WS #5,7,9 See copy here: Rate Law WS and Answers

# Sig Figs and More!

- Go over HW Q’s (#56-59 letters b and d)
- I will be able to apply what I have learned about sig figs and measurements
- Activity: Find the density of water
- Do: #56-59 letters f and h
- Do: POGIL WS “Significant Zeros”
- Next class: bring a ruler (around 15 cm long) and a scientific calculator
- Next class: quiz on sig figs and unit conversions.

# Intro to Ch14 – Chemical Kinetics

- Go over Organic Chemistry test (block 7) and ch13 test (blocks 7 and 8). Do corrections and if you want to write a retest, come talk to me.
- Intro to ch14. See learning outcomes here: ch14 12th Edition Chemical Kinetics Learning Outcomes
- I will be able to measure the rate of a reaction. See class notes here: Measuring Rate
- Read section 14.2 and do the worksheet. 17 Rate of Reaction – S

# What is Matter?

- Go over lab safety test.
- I will be able to describe the properties of matter.
- I will be able to read for information and organize information into column notes.
- Demo: physical and chemical properties
- Read section 7.1 and organize the key ideas into 3-column notes (Key idea/ Description/ Examples) (pages 246-253)

6. Video:

# Significant Figures and How to Make the Best Measurements

- Warm Up! Unit II #17m on p.21
- Go over the POGIL “Significant Digits and Measurements”
- I will be able to apply significant digits when making measurements.
- Do: Hebden p.32 #48-50
- Do: Hebden p.39 #56-59 – do at least questions b and d. Check your answers at the back of the workbook. If you feel you need more practice, do more of the questions!

# Ch13 Test

- Hand in ch13 notes and practice (i.e. review WS that is marked and corrected; PES practice)
- Today, students wrote the Ch13 Test
- Next week, we will start chapter 14 on Reaction Kinetics (speed of reactions). Make sure you have completed your Safety WS (and hand it in!) so you can participate in the lab activities.

# Lab Safety Test

- Lab Safety Test
- Intro to Unit III (chapters 7 to 9) – we drew the “tree of chemistry”
- Block 5 – Begin reading chapter 7 if you have time.
- Block 6 – Continue with the column notes for section 7.1 . You will have some class time next week to finish the notes.

# Intro to Precision and Accuracy

- The Workbooks are here! Come pick them up.
- Go over Unit D #1 answers.
- I will be able to use the conversion factor method to convert metric units.
- Do: Hebden Workbook p.21 #17 (the other questions we did not cover in class)
- I will be able to explain the difference between accuracy and precision.
- Do: the Worksheet “Significant Digits and Measurements” (the one with the rulers)

# Ch13 Review and PES Review

- Any Q’s about ch13 and PES? Focus on the theory. The calculations will focus on ways to measure concentration of solutions, NOT calculations involving colligative properties.
- Ch13 Test Outline: about 25 mc questions and about 3 written questions. The calculations will focus on measuring the concentration of a solution (i.e. molarity, molality, mole fractions, mass percent, ppm, ppb….) The colligative properties will focus on the theory, not the calculations.