Frank is about to check my blog

At this point in my life i am thinking of what to do with the knowledge i have gained in this class. this has been a great year and this post is totally not just to say i have 4 in gas laws. (i thought we were doing another one for later in this week)

ideal gas law

The idel gas law is used when you need to find a single variable out of the 4 when the others are given. Because this law uses R,the universal gas constant, the pressure must be in atm, the temp. in Kelvin, and the Volume in liters. Also mass must be in mols. This equation is the derogatory equation for all the others that we have learned.

Charles law / Avagadros law

Charles law: V1/T1=V2/T2

Charles law is another gas law based of the ideal gas equation. This time however is pertains to the direct relationship of temperature and volume. If one is increased then the other must also increase at a fairly steady rate.

Avagadros law: V1/n1=V2/n2

Avacados law is the third gas law we are working with and tells us about the relationship between Moles and volume. Like charles law there is a direct relationship between the two. Unlike any other law so far, this law uses moles. Making us have to use stoich in a couple more situations. This could pose a problem on quizzes  because steps could be skipped or not remembered.

Boyles Laws

Boyles law: P1V1=P2V2

Boyles law is the first gas law we have learned and it shows the relation between pressure and volume. So the law is showing us that as long as the temperature of the gas is constant then Volume and pressure have an inverse relationship for when one of the variables change.

Heat capacity of metal lab

Our class did an experiment to find the specific heat of the metals Cu and Pb. To do this we first heated up our metals using a boiling water bath with the metals in them. This rose the heat of the metal to around 100 degrees (we checked for the exact temp) and then we had water at room temperature wich we were going to dump the metal into. This gave us the known variables of M-water, M-metal, Specific heat of water, Temperature of both before and after, leaving the only unknown variable by the end of the lab to be the specific heat of the metal.

energy and phase change

Our new unit is over phase change and the energy involved with that phase change. One of the bic componenets is using the equation Q=MC(delta)T. Another big component to this unit is the Phase change diagrams and how to read them.

Biodiesel boats

Today wall be a day that will be forever set in history books as the most amazing day of all time. Our class has finally put our Chik fill ah biodiesel on our boats and sped across the finish line. Sadly my partner was not there to help make the boat but we did work together to make the fuel.

making the fuel:

Boating:

Biodiesel video

Our video for the biodiesel project was cantered around a outdoors informational type idea. We had each person in our group contribute. Ajay had a wicked camera and David edited it, i provided for driving us on location and Zuri was onscreen. Doing this project was quite fun and i'm sure almost everyone learned something about the subject matter. I haven't seen any of the other videos, but I feel that someone at our school could win some prize money. Our video can be found HERE and hope we win!

Beginning biodiesel.

This unit is going to be a little bit different than most of our previous ones. it is going to be based off of making a boat, and propelling it with fuel we make. the other part of this unit revolves around making a video promoting biodiesel. Our group for the video is me, Ajay, David, and Zuri. 

The unit exam (pre-biodiesel)

The unit exam was a doozy. Some of the structures I just wasn't confident on their properties, but most of the test really wasn't that bad. Alarge part of this unit was solely based on structure. But one of the major components was quickly recognizing what the problem was dealing with and applying the proper steps.

Modeling lab work

Yesterday we did a lab in the library on physically modeling the molecules we have been working on. Some of them were quite confusing, but with team spirit (and mrs Frank giving us the answers) we prevailed. Altogether this was an interesting experience that reminded me of the random desk toys of molecules in movies. This little project was making figure molecules properly and identifying all of the bind and electron placement. It is good practice for the test and is putting us up against problems we haven't seen before. The Sf6 molecule for instance has 6 bond but 8 planes altogether. this can be easily confused and is a good area to start studying for the test.

Intro to bonding

Our new unit is all about bonding. This means we are going to go into the shape and structure of each molecule. So far though we have only had simple molecules like CO2, nothing large like NaHCO3. i believe we will start to get into more of these larger molecules later into the unit. This unit does not seem like it will get much harder. The key to it will be remembering the patterns of the molecules, and the labels that go with them. HERE are some of the basics to the bonding process to go over.

Unit exam and rockin party

The unit exam was a fairly easy one compared to others. The large amount of study sources helped with that. Along with the fact that this unit itself was an easier one. Many of us did quite well on the quiz and i hope this transferred into the test. There were only a couple of questions that stumped me completely.

Today was Mrs. Frankenbergs birthday (pretty sure she's turning 27). We had a rockin party that comprised of ha on doing scholar bowl while everyone looks at him dumbfounded. It was a good relax day for us to recharge on brain snacks. Hopefully this next unit won't be hard. 

This week (so far)

Starting off with a Couple more lessons this week was the follow up to the quiz on Friday. Letting everyone fill up on them brain snacks. Two lessons happened which we will need to memorize for the unit test. Also we have had to do two different periodic tables (fake). To study for this test i will be going through all of the online quiz's, and doing the large packet with all the questions. The second periodic table made no sense to me at all. Some better explaining could have been useful there.

Weekly quiz.

This quiz was (as frankenberg said) not too hard. Most of the information was common knowledge by time for the quiz. Some of the simple rules are the ones i forgot (Hunds, Pauli exclusion, etc..). Some big tings that were Incorporated were the wavelength formulas and the different forms of them. I cant do a lamda symbol so just pretend its there. C=_F, E=hF, E=h(c/_). Overall the test could have been a lot worse. Going over the online quiz's helped me study and the note supplements from class are amazing.(keep using those).

spectroscopic analysis lab

Today we did a lab that used spectroscopes to tell us the affect in transmittance that two different elements had at certain wavelengths. The elements were cobalt and copper. While we were testing the transmittance we also tested for absorbency. The spectroscopes( not telescopes ) were machines which you put a vial of water in and set the wavelength at its proper setting and had the transmittance for water at 100. Then you change the water vial out for the cobalt or copper vial and check for transmittance and absorbency. Making sure the vial has no fingerprints or else the data will be bad.

Flame test lab

Today we explored the realm of FIRE (very little songs about ice though). We Took samples of certain liquids on popsicle sticks and put them over an open flame. Many of these samples turned into a variety of colors varying from orange to green and even purple. The part that was the most confusing was the blue cobalt glass. The flames where we had to look through the glass to see them were not showing much change.

New unit info

According to Mrs. Frank this will be a quite easy unit. "Easy" is a relative term so we will see how that turns out. Very quickly we have gotten into a couple sets of notes. All of the notes so far relate to waves. Luckily i took physics last year and some of this is relate-able. The idea of a wave is a set amount of energy is put outwards through a medium. Traveling infinitely in a perfect system. The most common wave we experience is the light wave. Other waves we encounter are radio and microwaves, and ultraviolet rays give us a tan. Most of the information we have learned thus far is pretty straight forward.

The Unit exam

This exam felt a lot like the quiz before. My only real problem with the test was that it took place after we had a whole week to forget about it cause of labs. Moving on. This test was centered around all the previous notes we have done before. the only confusing part of the test for me was finding the ka with the ph and molarity of the solution. To study for this test i went over the big packet with mostly the ph square thingy, and the tests on schoology. Even thought the answer to study guide relationship was a little bit off. this helped with the ice box and titration problems the most. Overall for being the hardest test of the year it didn't feel like it. Which means i probably got a 50%

The unknown acid lab

So lets say you have an unknown acid (solid) and you want to know how to find it. First off you throw away all the data from the previous day and start fresh. This limits your time so you work harder. Next you take a base and acid combo that you already know and use this to find the molarity of the base because that information was somehow forgotten in the making of the base. then take the base you just used and titrate it with the unknown acid. this allows you to find the molar mass of the unknown acid and find out what it is. This is all just hypothetical..... I swear....

Acid and vinegar lab

The process is complete for the acid and vinegar lab. To start out we had to titrate the acid KHP (which is not just K, H, and P). To do this we had to set up the lab by clearing out the burett and filing it with NaOH (base). Taking .5ish grams of KHP and dissolving it in a about 75 ml of water with a couple drops of phenolphaline. Taking the KHP in a flask and put it under the burett to get titrated (make the phenolphaline turn the liquid light pink). Then you take the flask and fill ti with 10 ml of vinegar and then titrate it with the leftover base in the burett. After doing all of this we can find a large amount of different numbers and items. Such as the molarity of the base or the atomic mass of vinegar.

That last test though

So the test was not was what i was expecting it to be. The last part of it with the ice box problems was not my favorite. just in case anyone else had this problem here is the method to do them. Take the Equation X squared over the molarity minus X and set that equal to ka (unless it is less than kw). multiply the equation out to equal zero. Then Find the zeros of the equation on a graph or use the quadratic equation. Finally take this final number and use it as the [H+] to find ph.

Recent notes

Arrhenius reminds me of diarrhea. Just saying. So the first thing we went over this week was the difference between Arrhenius and Bronstead-lowry acids and bases. Arrhenius acids/bases are all the ones we have been using so far. Bronstead-lowry ones have generally not been used by us and have much more specific uses in a Bronstead-lowry equation. The general definition of the acids is that they donate an electron and the bases receive an electron. Our class also learned how to do ice box equations. Which generically evolve into X squared divided by the molarity minus X set equal to Ka. These equations are used to find the ph of weak acids. The last thing we went over is the H+ to OH- to pH to pOH square. this square tells how you can get any htree things from the square when you only start with one.

Vitamin C lab

So first off i have to apologize to all the groups because of the fact that Gannon ruined everything. He was only supposed to use one tablet of vitamin c concentration but he used two. Besides that the lab seemed to go off without a hitch. We started the lab by getting samples of 5 different liquids with varying vitamin C concentration. Putting 20 drops of each liquid in a test tube with starch readied them for testing. The testing was conducted by dropping iodine concentration into the test tubes and counting the amount of drops it took to turn fully blue. Then doing some plug and chug equations we were able to find the vitamin c concentration.

Murder mystery lab

There was a murder... DUN DUN DUNUNUNUNN!!!!!!! Of a fictional character who died by mysterious circumstances and all that was left was a puddle of a liquid she drank which caused her to die. to find out who did it we (as the detective) must use our chemistry knowledge to figure out who the culprit was by finding the chemical weapon and the morality of it. To do this we start by mixing the murder weapon with another chemical and because it reacts and forms a precipitate we know it is Silver Nitrate. to find the molarity of the substance we measure the weight of the formed precipitate.
After doing this we narrow down the culprit to being the professor who killed the girl.

Acid solutions

Our most recent lesson is about How stoichiometry can be used to find different components in an aqueous solution with an acid

dilutions lab

today we did a lab to give us an example of dilutions and how to do dilutions. We started out with a cup of 20 drops of food coloring . after this was done we proceeded to take one ml out and add 19 ml of clear water so that the next dilution in the line was also 20 ml continuing until the final solution was what looked to be clear water again.