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.
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| 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.
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| 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.
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| 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.
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| 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.
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| 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!
Boat Racing
Last week, we conducted our boat races. I'm proud to say that my partner and I won third place. It was a really fun experience, and it definitely was a relief from the usual lecture/test stress.
Making Biodiesel Part 2
On Friday, we found our biodiesel separated into three layers! The top and bottom layers were impurities, and our actual biodiesel was the middle layer. To test if our biodiesel worked, we filled an empty tea light wick with the biodiesel and lit it. Sure enough, the flame was sustained for quite a bit, indicating that our biodiesel worked great!
Making Biodiesel Part 1
On Thursday, we began the process of making our own biodiesel. First, we took recycled peanut oil and combined it with a mixture of KOH and methanol. Then, we put a flask of this mixture into a hot water bath and boiled it for about 20 minutes. Lastly, we let it cool and settle, upon which it began to separate into two layers.
Unit Test Reflection
We took the unit test yesterday, and I thought it went pretty well! Much of the test came from the practice quizzes on Schoology which I used to review. I used some of those resources on Schoology. At first, I was a bit apprehensive about this unit as there were so many things to remember. and I felt really nervous about this test. However, with lots of practice, I felt really comfortable with the concepts.
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| http://1fotonin.com/group/pictures-of-happy-faces/index.htm |
Modeling Activity
Last week, we went to the library for a lab. It was interesting as it was in the library where we drew on the tables and played around with building pieces to create Lewis structures. I enjoyed this lab as it allowed me to practice Lewis strucutres, something I am still quite uneasy about. It was also great to have Mrs. Frankenberg hovering around, available to answer any questions.
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| http://faculty.sdmiramar.edu/fgarces/zCourse/All_Year/Ch100_OL/aMy_FileLec/04OL_LecNotes_Ch100/05_CompoundBonding/502_Lewis/502_Lewis.htm |
Lecture
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| http://www.slideshare.net/Drahmadfahmi/04-chemical-bonds |
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