Acids, Bases, & Intro to pH, 5-14-13

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Great intro to the properties of acids and bases! Do you think you can apply them now?

You did a great job on figuring out pH. Acids mean H30+ ions and pH, bases mean OH- ions and pOH. Get the pH of an acid straight from the concentration of the acid. Get the pH of a base by first finding the pOH straight from the concentration of the base and then subtracting that from 14. No problem!! So how do you think someone would use pH?

Don’t forget about learning those indicator colors I told you about. Can you think of anything else that might be a natural indicator? What about tea? Have you noticed how it changes to a lighter shade when you add lemon?

Hon Chemistry 5-13-13 Intro to Ideal Gas Law

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HON CHEMISTRY: How much fun can you have with a Sprite can? Wow! Did you have a heart attack? More importantly can you tell me why it did what it did? Think about words like steam, condensation, atmospheric pressure.

How’d you like putting the gas laws together in the ideal gas law? Pretty cool, huh?!? Don’t forget to memorize R. We’ll get to the water boiling in the syringe tomorrow!

Hon Chemistry 5-10-13 Gas Laws, Pt. 2

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HON CHEMISTRY: Okay, for the record, water balloons do not obey Avogadro’s Law, but gas balloons do! Equal volume balloons contain the same number of molecules. Yay, another great conversion factor!!

How’d you like playing around with the gas laws? Super cool the way you maneuvered it around like that to use something like density!

Sooooo… no test Monday! Check for the update on the syllabus. Have a great weekend!!


flickr photo by meg’s my name

Chemistry 5-10-13 Stoichiometry

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HON CHEMISTRY: Wow! Great job today – and I wasn’t even there 1st and 2nd period! Thanks for letting me go to kindergarten graduation!

Here’s your first lecture on reaction stoichiometry. You’re doing a great job applying what you remember about moles from earlier this year! Dont’ forget the keys! Now all you need is some practice and you’ll have it down pat. :)

BTW – here’s the vodcast I showed 1st and 2nd periods. You won’t be doing the thLAB on making cookies. Instead, this weekend you will be doing the thLAB: pH Paper. Won’t smell as good.

Senior Exams & Exam Reviews

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SENIORS: Hey guys, I wish you the best as you prepare for you very last Skinner Exam! Click below if you need a copy of the exam review. I’ll meet you in the upstairs library Monday morning. Be sure to bring your cleaned out textbook (erased, cleaned out and in perfect condition!), a calculator, a pencil, and your card and paper.

Just in case you didn’t get the message, the following students are exempt from the 2nd semester physics exam: Claire, Hunter, Kelsey, Kever, Will T. Wow! Five! That’s great. Good job, guys!
Physics Exam Review Packet – 2nd Semester

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Hon Chemistry 4-30-13 Stoichiometry Practice

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HON CHEMISTRY: Good job today! I know that kind of sounds crazy since we only did one problem, but I loved the way you worked through that sticky problem today! They won’t all be plug and play in the real world!

Happy baking with the thLAB. Make sure you read the lab carefully and are sure of what you are supposed to do before you do something irreversible with your bag of sugar!