Daily Archives: October 9, 2012

Chemistry 10-9-12 Mixture Separation Lab

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CHEMISTRY Wow! That was pretty insane, huh? Did your salt look like this? I’m really, really proud of you and the way you were able to apply what you learned in the last chapter about mixtures and physical means of separation!

It’s a good thing to be able to follow a set of directions, but an absolutely TREMENDOUS thing to be able to figure out how to solve a problem on your own! That’s a difficult thing to learn how to do, and you are doing a great job developing that skill. Any questions about writing up the lab report for TOMORROW? Use the Lab Report manuscript form you can find here under the chemistry labs tab, or on Edline. Remember, some of you definitely need to elaborate on your procedure!

Also, you must include the data table that is on the original lab sheets, and then include your own observations of each step you did after the data table. And then, after you write your own conclusion, don’t forget to answer all of the questions at the end of the lab sheets. The answers to those questions will go after your own conclusion.


Image source http://www.gourmetnut.com/sea-salts/cyprus-flake-salt.html

Hon Chemistry 10-9-12 Oxidation Numbers

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HON CHEMISTRY: So how are the chemical formulas coming? I think you’re starting to get the hang of writing the formulas, but what about naming compounds? Help session? Don’t forget to add a few more things to your “make sure you memorize for the test” list: polyatomic ions, chemical names and formulas for common substances, binary acids, oxyacids, prefixes, and oxidation rules. Oxidation rules! We’ve really already been using oxidation numbers, you just didn’t know it! 🙂

But does it all matter? These complicated rules about naming compounds, I mean. Let’s find out tomorrow in lab!


flickr photo by scottwillis

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