Catalyst

Catalyst

1. How many grams are in 4 moles of H2O

2. I want to make a 2L 0.7 M solution of KBr. How many grams of KBr do I need?

End

INTRO1. How many times have you felt like you were working hard

and still not succeeding?2. How do you study? Give specifics3. If you don’t study often, why don’t you study often? If you do

study often, do you think you study effectively?4. How do you plan out your schedule for a week?5. On the strip of colored paper, write your favorite reason why

you do not study.

Write Out Your Favorite Excuse Not to practice

Get it/Do It Gap

Practice Doesn’t Stop Once you Are Good

Practicing is not…

• Staring at your notes• Doing your homework• Writing your lab reports• Sleeping with your notebook under your

pillow• Reading the textbook

Practice Practice Practice!1. Focus your Practice

- Don’t just study for the sake of studying. Give studying an objective with a criteria for success.

2. Practice until it is automatic3. Practice the good, the bad, and the ugly4. Drill baby drill!5. Isolate content you want to master6. Begin incorporating more ideas into your

studying as you master isolated skills7. What’s your plan?

How to Practice/Study1. Drill specific skills using worksheets, problem sets, etc.2. Re-work problems that were covered in class3. Do as many problems as possible!4. Go over problems that you did incorrectly, analyze the

mistakes you made5. Summarize complex topics from your notes. Re-write

portions of your notes6. Make flashcards of terms/ideas7. Create a concept map of ideas from the entire unit, entire

quarter, or entire year!8. Do practice FRQ Problems (only if you are confident on the

skills we have learned!)

Practice Partners

Lecture 3.8 – Tying it All Together

Learning Targets• Based on the exit ticket and your current level of understanding,

rate yourself 1 – 4 on LT 3.1-3.8.• If you haven’t learned the topic, put a zero

How do you go from grams to particles?

Grams of Substance A

Moles A

Our Focus for Today

Draw this in your notes!

Particles of A

I. Multiple Step Stoichiometry

• To go from grams to moles we need to multiply or divide by the molar mass

• To go from moles to particles we need to multiply or divide by 6.022 x 1023 particles

Class Example

• I pour 42 g of KBr out of a bag. How many particles did I pour out of the bag?

Table Talk

• I use 40 x 1023 particles of NaOH in a reaction. How many grams of NaOH did I use in this reaction?

White Board Practice

Question 1

• You have 32 g of H2O. How many particles do you have?

Question 2

• You have 12 x 1023 particles of O2. How many grams of O2 do you have?

Question 3

• You dissolve 14 g of HCl in 2 L. What is the molarity?

Question 4

• You want to make a 0.5 M solution of H2SO4 that has a final volume of 2 L. What is the amount of grams that you need to dissolve in order to achieve this?

Question 5

• You run a reaction with 42 g of HBr. How many particles did you use?

The Amazing Race• There are 8 different clues that you and your

teammate will be given.• These clues are around the room and will require

you to solve various stoichiometry problems.• There are different types of problems that you

will face and difficulty of the stoichiometry problem depends on the portion of the race that you are on

• You must check your answers with me before moving on!

Detour• You will have to choose between two stoichiometry problems before you start working on them. • You must decide on the one you want to solve before beginning

Roadblock• Before beginning you must decide on one person to solve the problem. • You cannot help the person

Fast Forward• An intense stoich. problem that if you get it right will jump you to the end of the race. Can only be completed at Stop 6.

Yield• At multiple points in the race there will be yield signs.• At one point you can have a group behind you stop and wait 3 min. The team must be behind you and you must give me your yield card

Your Route

Prizes

• 1st Place Team – Homework pass for each student, hot cheetos, and candy

• 2nd Place Team – Flamin’ Hot Cheetos• 3rd Place Team – Candy

s

Closing Time• Unit 3 Test and Molarity Lab up next!• Unit 3 review packet is extra credit