Wednesday, November 17, 2010

Wednesday, November 17, 2010


Hello Class!

Today was a short but fun-filled day. Late arrival means the class was only 35 minutes long. The first thing we did was reviewing our stoichiometry connected to Mole Island. Mole Island is an interesting topic which has to do with knowing how many "division bars" you have in a conversion equation. (For example, if you're converting moles to moles, you multiply once. If you're converting moles to grams, you do it twice. Finally, if you're converting grams to grams, you do it three times.) See pages 3 to 4 in packet for more info. For trickier problems, such as finding out how many kilograms in a certain substance there are, (like on our WebAssign), just do it regularly but when you're done multiply by 1000. (kilo=1000)

But wait, that's not all!

Then, we started stoiCHEoMISTRY. (You get it? It's like chemistry, but inside another word containing other letters) Basically. . . . . same thing. You look at a reaction, balance it, and then you go on and determine molar mass of every molecule. (By using the PT) Then you go on and find how many grams or moles of a particular substance there is in another substance. Again, see pages 5 to 6.

We ended the class by taking a pop quiz. If you have any questions, see Mr. H or simply refer to his webpage. Also, make sure to continue being proactive when it comes to those WebAssigns.

Bye.






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