Hon Chemistry 8-29-12 Scientific Notation

HON CHEMISTRY – Wow – that might be the fastest I’ve reviewed scientific notation ever! Here’s the lecture from Wednesday. Are you ready to kill your calculator yet? The best way to really learn all of the things from this chapter is practice, practice, practice! And just so you can do that, I’ve put it all together in your homework tonight….cuz I love you! 🙂 You can do it!!

flickr photo by Robert S. Donovan

Chemistry 8-29-12 Accuracy & Precision

CHEMISTRY – Hey guys, here’s the super fast lecture from Wednesday on accuracy, precision and percent error. Keep that formula for percent error handy, you’ll be using it all year! We’ll finish discussing significant figures tomorrow. You’ve made a great start on learning to measure with sig figs (we did that during the unit on lab stuff!), so now let’s crank it up a notch and begin to calculate with them. Don’t panic about the homework, I’ll show you tomorrow! (Just make sure you try it!!)

P.S. Are you ready for the SI quiz tomorrow? Don’t forget to study SI prefixes and their meanings, SI quantities and their symbols, and the SI units used to measure those quantities. Be proactive in your studying. For heaven’s sake, don’t just read the list – ake flashcards, use quizlet.com, get someone to call them out to you! Good luck!

flickr photo by – POD –