Moles + Percent Composition

Moles and Percent Comp by Mass

Moles are central to chemistry.  They involve a fair amount of math, and a lot of thinking.  This is not a topic to blow off, you will need to use moles throughout the rest of the year.  It is truly AMAZING how connected all the parts of chemistry become once you see this in action.  
And, there’s a really cool shark.

sharkface

As for Percent Composition by Mass, this part is sort of like figuring out what the mass of the bananas are in a whole fruit salad by a percentage.  There are never enough bananas, so your answer can be not enough bananas, and that’s usually good for at least one point!
We do three cool labs for this topic, including the Bubble Gum Lab which requires each of you to bring in a can of tuna fish!  (kidding).  I’ll buy the gum, you just have to chew it!  It’s the funniest class of the year since you guys won’t be able to talk at all and I will sing old rock and roll songs along with youtube!
Get psyched, I love this part of the course.  Peace, Love, and Chemistry.

Get psyched, I love this part of chem.      

Peace, Love, and Chemistry.


 

Moles + Percent Comp Basics

Moles Class Slideshows

Moles Notes

Moles Lab

Bubble Gum Lab

CuSO4 Lab

MgSO4 Lab

Moles Homework Assignments