Standard 8 Self Analysis

Remebering: What I did in Chemistry is:

1. Intermolecule Forces Lab
2. Chem Tech Project
3. LABS!!! (3 in one prezi)

What is important about it:

Each blog was interesting to write and learn whats new in the world Chemistry and I think the labs we did gave me a better understanding of Chemistry that its not all about numbers that you can actually have fun with Chemistry.

Applying:

I can really apply this in everyday life because I have chemistry class 1st hour! And I think some chemistry will help me in the ling run when I need it for college. 

Evaluating:

How I did this 4th quarter was actually really good because I put a lot of work into every post because 2 of them were labs and I think both are really big prezi's and one is a Project about leukemia which was hard for me to talk about because my grandfather has just recently pass away because of this cancer, but I am glad I got the word out because I think people need to know how sever a blood cancer can be. 

Creating:

This is my last quarter in Chemistry :( I think I did really well and achieved my goals in this  class I didn't do much blogging because this las quarter was a lot of labs which involved group members so we calibrated and did prezi's. I am most proud of my chem tech project because I worked really hard on it and I think I succeeded!! 

LABS!!

This is a prezi for all the labs we have done. We have the crystal,beer law and an acid titration lab. The first lab we did was crystals which we learned about solutions, solutes, I think the most interesting part is the dissolving concept. With and a medium sized beaker we used Id say a little under 13 oz of crystal mix. Which was pretty amazing because its just a little water and it kept dissolving!!!!!! CRAZY... The beer law it was fun but not as fun as the crystal lab.. And lastly we have the acid titration lab with was fun i liked when the acid turned pink.. My job was to turn the nosel on our huge graduated cylinder. It was interesting to see how much acid you can put in water until it turned pink.

Chem Tech project

In the last quarter of school we started a project. My project was about leukemia. This is a very touching project because in October I lost my grandfather to this type of cancer. The doctors diagnosed him in 2001 right after my brother was born. The doctors gave him a life sentence of 5 years but beat it. But he lived until 10/11/12 (12 years) which was amazing he was a strong man and a very good man. I looked up to him a lot. He would travel to the Mayo center in Minnesota to receive cancer treatment. He went through chemo, bone marrow transplant, Spinal Tap, and radiation. I remember that everything changed we would have to be so clean around him because of all these treatment he had no immune system so any sickness had the possibility of killing him. But he was a strong man to live past his sentence (5 years). But this Chem tech project really brought a new perspective of what a cancer patient goes through. I remember saying good bye to him and that i loved him. That was the most painful thing i have ever had to do. To see someone dying of cancer is really hard because they just shrink up. But Leukemia is a hard cancer because it is in your blood stream and effects everything in your body.

 

Intermolecule Forces Lab

This is a power point about 6 alcohol's and what their evaporation rates are. We have graphs showing the audience what alcohol was the fastest evaporation rate and an explanation of the graph.

Std 8 #3

Remebering: What I did in Chemistry is:

1. Mole Calculations,Popcorn lab and % of water lab
2. AgNo3 + Cu Lab
3.  Gas Behavior Lab

What is important about it:

Each blog was interesting to write and learn whats new in the world of biology and just a new insight of the world of Chemistry.

Applying:

I could apply this in everyday life. Biology is very important with what I want to become. I want be become a nurse practioner so this field of science is essential to medical school. Also I think chemistry is cool when we dont have to use the mole.

Evaluating:

How I did this 3rd quarter was good. I enjoyed all the labs we did. I really didn't like the mole maily because I'm not good at math. But all the chemistry expriments were extreamily fun!

Creating:

Next quarter I could put some youtube videos, websites, and just more visual effects to my blogs to give a further explanition of what we are studing. Also I need to get better at writing in my blogs.  I have everything in my head but writing it it comes out wrong but I am trying.

Gas Behavior Lab

We have been working on 3 labs. All three were very fun lab except for the fact that we had a few technical difficulties while working through these labs. Our first lab was a Volume vs Pressure, Pressure vs Temperature and lastly Temperature vs Volume. 

Our 1st lab was Volume vs. Pressure. What we did was stack books on a syringe with the red pressure blocks on top, but this was the way we tested the volume by how much pressure we can put on it. We got up to six books. and the put them on the plunger looking thing. This was a fun experiment. As you can see with the graph you can see the stats of what has been happening.  

This is the plunger looking thing that we put the books on. 

6 BOOKS WOOO!!!

Our next lab was Temperature vs Volume this is where we had a test-tube hooked up to to a temperature probe and placed them in a tube of ice (0'C) and HOT bath (80'C) and a warm bath (50'C).  We waited until we saw a change in the syringe weather the piston moved up or down. With the ice the piston moved down and the warm baths moved the piston up ward.

HOT BATH

ICE BATH

Our last experiment is Pressure vs Temperature this is where we had a computer out and hooked up a pressure sensor to a test tube to measure how much pressure is in the test-tube in a certain temperature. We had a hot bath (80'C) Ice bath (0'C) Warm bath (50'C). The graph below shows the pressure for the certain temperature. The colder the temperature less pressure the higher the temperature the greater the pressure.

Hot bath connected to the pressure sensor.

This is a diagram of a TV and you put your penceil in the holes. If you put it in the pressure slot it explains if that temperature and volume that if pressure goes up volume and temperature will decrease and if pressure goes down they increase. For the temperature slot if the volume goes up the pressure will decrease and if pressure goes up volume will decrease. For the volume slot if it increases the temperaute and pressure decrease and if volume decreases the temperature and pressure will increase.

AgNo3 + Cu Lab

With this lab we conducted an experiment to find the silver in a copper wire and distilled water and the next day we shook the silver off the copper wire and siphoned it through filter paper. A weekend later we have dried silver that Mr. Ludwig will make millions off :)

Mole Calculations,Popcorn lab and % of water lab

With the begging of the year starting, we started talking about the mole. In a previous post about the mole we talked about the history of it and how it used. In this post it is a large post about the mole and ways we have used it in class.
MOLE CALCULATIONS 
We first started off with learning about mole calculations and how we use them in the real world. A mole is commonly abbreviated mol (short huh?) The mole is 6.02 X 10^23. The mole is the amount of something, like how a baker uses dozen, Chemists uses the mole to count something.
 So here is an example of how to use a mole correctly. This example is converting moles to particles and particles to moles.
Your equation looks like this # of moles X 6.02 X 10^23 representative particles      
                                                                                   1 mole = number of representative particles

Here is a real world problem : 2.5 mol Zn X 6.02 x 10^23 atoms  = 1.505 X 10^24  

                                                                                1 mol

What I did was I reduced the mol Zn and the bottom mol then multiplied across and divided by one to get 1.505 X 10^24 

HERE ARE SOME WORK SHEETS I DID TO SHOW THAT I KNOW HOW TO USE MOLES:) THESE ARE PAPERS FROM THE BOOK AND THE COVER ALL THE MOLE CALCULATIONS.

MASS AND THE MOLE
This is the also an easy mole equation. Molar mass is the mass in grams of one mole of any pure substance.
  This is the equation for molar mass # of moles X # of grams
                                                                                 1 mole       = mass

Here is an example 3.00 mol Mn X 54.9 g Mn
                                                          1 mol Mn  = 1.65 g Mn
Again you follow the simple math and reduce and balance the equation.

MOLES OF COMPOUNDS
Moles of compounds are a little harder than the others what you do is find a ratio so the formula CCl2F2 has a ratio of 1:2:2 because the formula has 1 carbon, and 2 chlorine and 2 fluorine.
 Here is an example: 1 mol C atoms         2 mol Cl atoms        2 mold F atoms        
                                 1 mold CCL2F2      1 mol CCl2F2           1 mol CCl2F2
moles CCl2F2 X moles F atoms   = moles F atoms
                             1 mole CCl2F2
*fluorine atoms = 5.50*

5.50 mole CCl2F2 X 2 mol Fatoms  = 11.0 mol Fatoms
                                    1 mol CCl2F2
And so 11.0 mol F atoms are in 5.50 moles of CCl2F2

EMPIRICAL AND MOLECULAR FORMULAS
First off we have percent composition all this is, is to find the percent by mass. This is so easy all you do is mass of element
        mass of compound x 100 = percent by mass

Empirical formula 
Empirical formula for a compound is the formula with the smallest whole number mole ratio of the elements. *the empirical formula may or may nor be the same as the actual molecular formula*
The empirical formula for hydrogen peroxide is HO the molecular formula is H2O2. Both have a 1:1 ratio.
An example is: 48.64 g C X 1 mol C
                                             12.01 g C  = 4.050 mol C
Same as before you reduce and divide. 

THIS IS A WORKSHEET COVERING EMPIRICAL AND MOLECULAR FORMULAS.

With this prezi below it will show how to use the hydrate formula in a popcorn lab and % of water lab: