Class Blog 10/14/13

Class Notes 10/14/13

1. Homework was checked in, which was taking notes on stoichiometry video.

2. Beginning of class was spent briefly reviewing the quizzes we took on Friday

-Remember it’s ok to sometimes fail!

3. 4 Stoichiometry worksheets were passed out. (Examples were done on 2 of them)

4. Next, we took an introduction to Stoichiometry, which is similar  to earlier molar mass conversions done earlier, only these go more in depth.  

-Ms. Friedmann’s in-class notes can be found here on Moodle.

-Stoichiometry is used to compare two “things” (thing 1 and thing 2). Usually, you are given

thing 1 and have to find thing 2

.

-We use mass and mole conversions to help us achieve this.

-Remember the conversion factor:

Mass (grams to molar mass) * Moles (Molar mass to particles) * Avogadro’s Number

Homework:

“1) Complete the Intro to Stoichiometry Wss (worksheets) posted in the Unit 3 Handouts folder.  Due tomorrow.  If you were absent today, take a look at the examples done and refer to the Intro Notes on Stoichiometry (posted in the Unit 3 Notes folder) and see if that's enough to help you get started.

2) Go to the blog and contribute to the class effort to solve the problem I posted there today.  Everyone must make a constructive comment that shows your attempt to process the problem.  The goal is for everyone to understand how to solve this problem by the time we meet in class tomorrow.  WE ARE NOT DONE WHEN THE CORRECT ANSWER IS POSTED; WE ARE DONE WHEN EVERYONE UNDERSTANDS HOW THE CORRECT ANSWER WAS ACHIEVED. “

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