I cannot believe the trimester is almost over. Junior year flies by. I really don't remember what I've been doing that past three months. My grades are still horrible right now, but next trimester will probably be better since I don't have football. This week of chemistry, we basically just reviewed everything and learned about the different characteristic of phases of matter. It's pretty easy. I just need to review and be ready for the test next week. Next week is going to be stressful because I'll have basically tests in all of my classes, and they determine my grade for the trimester.
Here is my basic knowledge that I learned from the week. Liquid is basically when the molecules spread out but yet still attracted with one another, allowing liquid to freely flow around and take in any shape. Solid is when molecules are tightly compacted in a volume, the electrons are vibrating like a "sea" which is why it's very electric and heat conductive. Whereas gas, the molecules are way far apart from each other, going everywhere. We also learned about vapor pressure in the past week. The greater the intermolecular bonds the greater the viscosity. As viscosity increases, the boiling point increases because the intermolecular bonds are greater. Lattice energy is all based off form Couloumb's law, so really self explanatory to see the lattice energy of a molecule. Ionic solids is the strongest and trump all of the other kind of solids. Vapor pressure is basically how easily the molecules in liquid can break apart due to the attraction force within the molecule. Vapor pressure and boiling point are inversely related. On the test, I need to focused on how I word my explanation which is really important to show that I know the concept thoroughly. I am a little bit stressed out right now for the finals as well, along with all of my tests coming up. I need to find a stress relief for myself in order for me success in life I guess.
Overall, these are my general summary of what I learned this week from chemistry. I was sick on Friday, so I didn't really know what we learned on that day. I still have lots of studying to do for all of my other classes. Especially math, I really need to do well on the next test otherwise I'll be in trouble. Although I didn't begin my junior year with a strong start, I am very determined to get good grades for the rest of the years. Lastly, I can't wait for robotics season to start. It's time to put my hands on the machines once again and make cool things. I hope that we will make nationals again this year, where we can skip a week of school and just have fun.
Saturday, November 9, 2013
Saturday, November 2, 2013
Blog Reflection 11/2/2013
Over the past week, we finished our test from last week about the basic structures of molecule. Now we transitioned into basically the intramolecular and intermolecular bond in molecules. Since football season is finally over, I can finally go home after school and get some rest. On Monday, I joined a new club that my friend made which was the "rock climbing" club. It was really fun, we had pizza, we climbed and got really sore afterwards. Last weekends, I remembered we were assigned with two moodle quizzes online about the basic inter- and intramolecular forces.
We did lots of lecture quizzes online and they were really easy. Intramolecular forces are forces that keeps the bond together within a molecule. Whereas internmolcular forces are forces between molecules. We went over lots of pogils in class throughout the week. We discover basically the trend of boiling points of molecules comparing to its molecular size/ charges. We also went over the different kinds of LDFs (London Dispersion Forces) within a molecule. Hydrogen bonds can only happen between hyrdrogen and nitrogen, oxygen, fluorine, also known as, NOF. Out of all the LDFs, hydrogen bond is the strongest out of all. Then it moves on to dipole induced to dipole-dipole. Its pretty simple. In simple words, the bigger the size of the molecule, the higher the boiling point. Then, the information is not provided, then we compared the charges of the molecule to see how polarizable the molecule is.
It all makes sense, if the molecule has a closer together due to its stronger intramolecular force then it would take more energy to dissolve it in water, so higher boiling point. Then over the weekend, we were assigned with a lecture quiz about solids and liquids. It shows basically the intremolecular forces difference between the different kinds of solids, which were molecular solids, covalent network solids, ionic solids and metallic solids. We also went over the viscosity of molecules. The more viscous a molecule is, the thicker it is, the harder it is to boil. I still can't believe the trimester is almost over. Time really flies by, in a blink of an eye and my high school is almost over. One more year, then I am pretty much done. I am really stressed now about all the standardized tests, college, and my grades. My grades are very "disappointing" right now. I am trying to do my best to bring them up. I am now very determined to get all A's next trimester. Also, I am interested in joining the research program that Dr. F sent to us. It's pretty cool though, to live in a college campus over the summer and just study science the whole day. Lastly, I dissected a cow eye on Friday which was pretty excited. It was interesting to see the different structures of our eye. It really is amazing how our body works.
We did lots of lecture quizzes online and they were really easy. Intramolecular forces are forces that keeps the bond together within a molecule. Whereas internmolcular forces are forces between molecules. We went over lots of pogils in class throughout the week. We discover basically the trend of boiling points of molecules comparing to its molecular size/ charges. We also went over the different kinds of LDFs (London Dispersion Forces) within a molecule. Hydrogen bonds can only happen between hyrdrogen and nitrogen, oxygen, fluorine, also known as, NOF. Out of all the LDFs, hydrogen bond is the strongest out of all. Then it moves on to dipole induced to dipole-dipole. Its pretty simple. In simple words, the bigger the size of the molecule, the higher the boiling point. Then, the information is not provided, then we compared the charges of the molecule to see how polarizable the molecule is.
It all makes sense, if the molecule has a closer together due to its stronger intramolecular force then it would take more energy to dissolve it in water, so higher boiling point. Then over the weekend, we were assigned with a lecture quiz about solids and liquids. It shows basically the intremolecular forces difference between the different kinds of solids, which were molecular solids, covalent network solids, ionic solids and metallic solids. We also went over the viscosity of molecules. The more viscous a molecule is, the thicker it is, the harder it is to boil. I still can't believe the trimester is almost over. Time really flies by, in a blink of an eye and my high school is almost over. One more year, then I am pretty much done. I am really stressed now about all the standardized tests, college, and my grades. My grades are very "disappointing" right now. I am trying to do my best to bring them up. I am now very determined to get all A's next trimester. Also, I am interested in joining the research program that Dr. F sent to us. It's pretty cool though, to live in a college campus over the summer and just study science the whole day. Lastly, I dissected a cow eye on Friday which was pretty excited. It was interesting to see the different structures of our eye. It really is amazing how our body works.
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