Monday, May 9, 2016

ATTENTION! I ACTUALLY PASSED THE LAB!


Over the weekend, I worked hard to understand how to set up the dimensional analysis for this lab. I started by writing down the things I knew how to convert then tried to connect point A to point B. It ended up being less confusing than I though, but it did take me a while to figure everything. I did a few test trials at home with different sized bags. They were all successful! I felt fairly confident going into the lab today but also a little nervous. Thankfully I was able to pass the lab and move on to studying for the test on Friday!



Friday, May 6, 2016

Airbag Lab

Today we got the rubric for the Airbag lab that we are going to do on Monday and I am very nervous about the lab. We were told that we have to write the procedure and all the possible conversion factors that would be used in order to figure out what amount of baking soda and vinegar are needed to run the experiment. We also were given no measurements! All we will recieve on Monday is the pressure and temperature of the room. I am very confused on how I am supposed to write a procedure and the stoichiometry without really knowing what the lab is or any data that we will use!

Below are two links that I think might help me with the calculations for the lab: Video 1 (shorter)
Video 2 (long)
 THESE LINKS ARE VERY HELPFUL!!!!!!

Wednesday, May 4, 2016

Avagadro's Law and Combined Gas Law

Gas is at a constant pressure and temperature
volume is directly proportional to the number of moles
Equal volumes of gases at the same temperature and pressure have the same number of particles
http://wps.prenhall.com/wps/media/objects/4678/4790892/images/aabjvhsa.jpg

Tuesday, May 3, 2016

Charles Law!

So Far So Good

Temperature and Volume
Temperature and volume vary directly with each other
Moles and Pressure are help constant
All temperature must be written in Kelvin for Charles Law
Kelvin is set on an absolute scale
Absolute zero= there is no kinetic movement of molecules at all

http://thescienceclassroom.org/wp-content/uploads/2013/04/Charless-Law.png


http://images.tutorvista.com/cms/images/83/celsius-to-kelvin-formulae.png

Monday, May 2, 2016

First Day of Gas Laws

TODAY WE LEARNED ABOUT GASES!!!!!!!!! LAST UNIT! THE END IS NEAR!!!!!!!!!

Volume (V)= Liters(L)
Pressure(P)= 1 atm (1.015x10^5)
Temperature(T)= Kelvin(K)
Number of atoms

Highly compressible
No definite shape or volume
Homogeneous mixture
Collisions are elastic


https://kaiserscience.files.wordpress.com/2015/09/common-units-of-gas-atmosphere-pressure.jpg
Four Factors that Determine the State of a Gas:
Pressure
Temperature
Volume
Amount (usually measured in moles)

http://reich-chemistry.wikispaces.com/file/view/combined.gif/34136171/148x70/combined.gif
tells us that the relationship between pressure and volume is an inverse relationship. It deals with two of the four factors that determine the state of a gas: pressure and volume. It holds true at a constant temperature.