Tyler's Pre-AP Chemistry Blog
Tuesday, May 10, 2016
Airbag Lab
The lab was inflating a Ziploc bag with carbon dioxide from the chemical reaction of vinegar and baking soda. It was a bit stressful as I had to rely on my own accuracy of my procedure and measurments. Sadly, my measurements were off and my bag did not fully inflate.
http://www.moneysavingexpert.com/news/phones/2015/05/that-smile-might-cost-you-beware-being-hit-with-huge-emoji-fees |
Quiz Reflection
We took a quiz on gas laws. The quiz was not that bad at all, and I hope I score well. The lectures we've learned so far were not too hard and only consisted of formulas. I am looking forward to our next lessons.
https://blog.earlyshares.com/university/reg-a-meet-the-newest-way-to-do-real-estate-crowdfunding/ |
PV=nRT
We had another lecture for the gas laws unit. This was yet another formula lecture, one that was not difficult at all and mostly involved basic plug-n-chug. I am really nervous for the lab on Monday as it is pass-fail, and I don't 100% trust myself with being accurate in my calculations.
http://www.calctool.org/CALC/chem/c_thermo/ideal_gas |
Lectures
The gas laws unit has proven to be pretty straightforward and simple. The first lectures we've had are centered on one major formula: the combined gas law formula. We've gone through various different problems concerning the gas law, only with different constants. Additionally, we've learned different units of pressure, which I believe is the only difficult part of this unit: memorizing all the different conversions and units.
https://prezi.com/8ywewmiga8tq/combined-gas-law/ |
Energy Test Reflection
We took our unit test for Energy. This whole unit flew by as there were only two lectures and one lab, and everything was pretty straightforward. Thus, I felt like the test was pretty simple and nothing to stress over this weekend.
https://commons.wikimedia.org/wiki/File:Phase_changes.svg |
Specific Heat of a Metal Lab
We did a lab to measure the specific heats of copper and lead by heating the metals in a hot water bath and figuring out the variables for MCAT. I'm pretty happy because our copper trial yielded only a 4% error for the specific heat!
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