Helpful Links

Links:

1. Kahn Acedemy
2. Gas Laws
3. Kinetic Molecular Theory and Gas Law
4. Gas Laws
5. Ideal Gas
6. The Ideal Gas Law: Crash Course Chemistry #12

Air Bag Lab

The air bag lab, don't even get me started. I had a 5 1/2 hour car drive so I had alot of time to figure out how to do the calculations and the procedure. The internet and the note sheets were a great resource, so I eventually did figure it out. I tested all of my calculations and they all looked really good.

Gas Laws Lesson

Equation

Pretty much all we learned was 2 equations: (P1V2)/(T2n)=(P2V2)/(T2n) and PV=nRT. The problems were more difficult than the first lesson, but I think it helps to list out the variables and decide what variables you need. Overall this lesson wasn't too terribly difficult and won't take that much studying to memorize.

Gas Laws lesson 1

Equation

Today we learned just one thing: (P/V)/T=(P/V)/T. We did several practice problems and I felt very confident that I knew what I was doing. It was all just plug and chug, so thought it was very easy.

Energy Unit Test

We all did good!

After taking the test I felt confident I did good. I think I only missed 1. There were like 2 or 3 tricky ones that seemed foreign to me, but I went to Mrs. Frank after the test and I got them right! I think pretty much all of her classes did good which is always good. Now we only have 1 more unit to tackle before the end of the year!

How I feel I did

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. Overall Liesel and I were sastified because we yielded only a 4% error. Now for Dylan Kossl I can't say he yielded a good percent error *cough cough* like 120% error *cough*. Here is a video of our test tube making a popping sound. 

Here is some pictures of the copper in the test tube.

Side view

Top view

First Lecture On Energy

Energy equation

Today we learned about energy change in the form of heat- heat released as a result of a reaction, or heat released as a reaction proceeds. The energy actually comes from after the bonds are broken, when the bonds are reformed. Whenever energy leaves a system it is called exothermic and whenever energy enters the system it is called endothermic.                                                                

Endothermic Reaction

Exothermic Reaction

Mrs. Frank also specified that we can't just stick a thermometer into a system, so whenever we read the temperature we are reading the temperature just outside the system. She introduced to us the equation of Q = mcΔT which we then put into practical use and calculated energy resulting after bonds have reformed. Overall I thought it was very easy. I am going to practice a few problems tonight just to make sure I have it down.

Race Day!

Today we raced our boat. Last night I was in a rush and didn't have time to glue my first boat together. So this morning I grabbed the simplest and lightest boat I made. Shown below

didn't have time to finish gluing

I thought our boat was going to be the slowest and was relieved to find out that was not true. That would be Dylan Kossl's boat. Shown below

After my first attempt I realized that my belief was drastically inaccurate, our boat was the fastest. My first run timed in at 12.1 seconds. I went again and timed in at 10.39 seconds.
I thought I didn't set my motor up right so I re raced unofficially with a new method. Mrs. Frank timed it at 8.95 seconds! She told us that was the fastest all day! The video is below.

Building of the Biodiesel Putt Putt Boat

A design I am considering

The biodiesel boat has been changing constantly. I've gone from a regular old boat to a racing boat. I have scraped a few designs because of the lack of speed, but 2 of them were actually very fast. I really want and need the extra credit so I am trying really hard for the boat to be light, aerodynamic, and capture the heat inside the chamber for the putt putt motor to be more efficient. I have tested in the bathtub and got an idea of what I might go with. So far this has been the most fun I have had in chemistry.

Another design I considered

Biodiesel Video

Biodiesel Bruh

We worked in the biodiesel project. I think I have a good thought out plan for our project. I thought we might start by bashing gasoline and making it seem like its critical we use biodiesel then we lead into the benefits of using it. Almost full proof, except that's all in theory. I think that we are going to run into some problems along the way. Anyway I think if Liesel and I make the video right then we will have a decent shot. The time given is a bit short though. I would have like to had at least 2 weeks to work on effects. Other than that I think its fun so far.

Green stuff going on

Unit Test for Chemical Bonding

Meh

After hours of preparation I finished the test. I specify finish because I don't know if I did well. The test overall was a lengthy test and like frank said we didn't have time to have need share every problem. The test wasn't particularly hard, but since there were so many problems you really had to rush and have the problems down by muscle memory. There were a few tricky problem, but I figured them out. Other than that I thought I did decent.

MEH

6 Useful links

Link

1. Kent Chemistry
2. Sparknotes
3. Boundless
4. Khan Academy
5. Hyperphysics
6. Lewis Theory of Bonding

Helpful Links

Lesson About Chemical Bonding

Lewis dot stuff

We learned about chemical bonding today. I was a little confused when it came to the lewis dot structure but all will come in due time. I know I am really gonna have to study hard to pull off a good grade on this. The have need share thing is a little confusing but I know I'll figure it out. The need part is what really confuses me though. Time will tell on whether I ever figure it out. I guess I will continue to study my butt off.

Bonding bruh

Electronic Structure and Periodic Trends Unit Test

Meh

I have yet to take the test, but from what I have heard it was pretty easy. Although I still think I am going to need to study a bunch considering how badly I did on the quiz. Will report once I have taken it.
Okay I'm back and I have taken it. It was harder than I thought, but it wasn't too terribly hard. I was able to finish in the time given which is always a plus. I ended up getting an 88% which I think isn't bad, but not satisfactory. I am happy about how I didn't fail though..... Onto the next test.

Periodic Trends Lesson

Periodic Trends

We learned about periodic trends, trends in ion size, trends in ionization energy, trends in electron affinity, and trends in electronegativity. The trends in atomic size is as you move down a group, the atoms tend to get larger. The trends in ionic size is that when an atom forms a cation, it will lose electrons. The trends in ionization energy is that the energy needed to remove an electron from a gaseous atom is known as the ionization energy. The trends in electron affinity is that noble gases have the lowest amount of energy to add an electron because you can't add an electron to something that already has all the valence shells filled, and that the trend goes up and to the right; it's different because on graphs the numbers are labeled as negative, but that's only because the the energy that has been given off. Finally the trends in electronegativity is the tendency of an atom to draw electrons toward itself when chemically combined with another element.

Links That Helped Me

Links:

1. Google Slides Overview Of Unit
2. SparkNotes
3. Flashcards
4. Concept Reading And Quiz
5. Bozeman Science
6. Crash Course

Weekly Quiz 1

: (

Hmmmmm where to start, I did bad. Probably because I was insanely busy the nights following up to the test. When I finally got my test back I looked at my answers and realized how stupid I must have been to put them. 95% of the ones I missed were because of misreading the question or rushing to an answer. If I had taken my time to read each question and answer them I would have gotten a 96%, but that's not what I got. I am going to have to study my a** off to pull off a great grade on the unit exam.

Electronic Structure and Periodic Trends Lab

I don't exactly see the point of the lab to be honest. I spent the entire hour adjusting a little knob that with the slightest twitch will jump up past what I need it at. Me and Matt shared our machine with another group and so I really should be trying to understand what the meaning behind the lab is, but I really don't feel like it. This entire paragraph is just afiller and Ihave no idea what to say about this lab except I should be trying to understand it. It was just testing different substances on how they respond to light. Anyway here is a picture:

Stuff is happening

First Lesson On Electronic Structure

Periodic Table

Overall I thought the lesson was fairly easy. Now I am not saying there wasn't some things I need clarification on- there is always those. Thankfully I don't believe there is much studying necessary to understand tomorrows lesson. We learned the basics about orbitals, sublevels, prnciple energy levels, etc. She gave us the school analogy to help clarify that. The other thing we learned is how to put an element into a specific way. For example Helium, He, is 1s^2; 1 being the principle energy level, s being the block that it's in, and ^2 being the electron count.

UNIT TEST

Ok?

I think the countless hours of practice problems and reviewing probably majorly helped. I only saw 1 new problem I didn't know how to do. That was the lake problem. I think I solved it, but I second guessed myself because I ended up with none of the above. We all know that the answer is typically never all of the above, but I still went with my gut. I later found out that none of the above was the correct answer, lucky. Other than that I can see how it is the lowest scoring test of the year had I not studied for it as much as I did. From what I can tell I am not the only one who put in the hours. Who knows I could have done all of the problems wrong, oh well. Nothing I can do, but wait for Dylan Kossl to finally take the test so we can see our grade.