Quiz

We had the quiz last Thursday and I didn't think it was too difficult.  I hope that the test goes well and that I don't mix up any of the gas laws. To study I will continue to do the practice test and read the book.

Avogadro's Law

The third gas law we learned about was Avogadro's Law. This law shows that gas at constant volume and pressure the volume is directly proportional to the number of moles present. The formula for this equation is V1n2=V2n1.



Avogadros Law

Extra Info

Charles Law

The second gas law we learned about was Charles Law. In this law volume varies directly with temperature. Also the temperature has to be converted from Celsius to Kelvin by adding 273.15. The formula is V1T2=V2T1.





Charles Law
More Info

Boyle's Law

The first gas law we learned about was Boyle's Law. In Boyle's Law the temperature has to stay constant for it to be true. The equation is P1V1=P2PV2, as volume increases the pressure       decreases.





Boyle's Law
More About Boyle's Law

Links and Helpful Pictures

Supercritical Fluids
Phase Changes
Solid, Liquid, Gas

Specific Heat Lab

In class we tested the specific heat of copper and lead. My partner and I tested Copper. We boiled water and placed the test tube with copper in it and let it sit for about ten minutes. We then took the test tube out and placed it in a cup of water and took the temperature of the water.






Specific Heat
Energy Of Phase Changes
Calculating Specific Heat

Videos

They finally released who made it to the top 10 for their biodiesel projects. Three people from our school made it to the top 10! Congratulations to everyone who made it, the videos were fun to make and I enjoyed learning about biodiesel and making it!

Boat Races and Making Biodiesel

In class we got to make biodiesel using old fryer oil from Chick-fil-a.  The lab was fun and it was cool to see how simple biodiesel is to make. After we made the biodiesel, we made boats to use the biodiesel and race. Our boat worked pretty well and made it down the track in about 10 seconds.


Making Biodiesel
Alternative Fuel

Biodiesel

Throughout the week we have been working on videos to help promote biodiesel. The videos mostly contain info and facts about the benefits of biodiesel. Biodiesel is a cheap and energy efficient fuel alternative to replace typical fuels.






Biodiesel in Missouri
National Biodiesel
Fuel Economy
Biodiesel Basics

Hybridization

Hybridization occurs when an atoms orbitals mix to from new orbitals. The new orbitals contain the same number of electrons as the original, hybridized orbitals are an average of the unhybridized ones.






Bonding
Hybridization

Molecular and Electron Geometry

Molecular geometry is the 3 dimensional arrangement of an atom while electron geometry includes valence electrons. Only bonded pairs are considered when determining an atoms molecular geometry. In electron geometry lone pairs and bonding electrons are considered.




Molecular and Electron Geometry
Molecular Geometry
Difference between Molecular and Electron Video

Lewis Structures

In class we learned about Lewis Structures or Electron dot diagrams. These diagrams are used to show bonds between atoms and the lone pairs of electrons. Along with Lewis Structures we learned about resonance structures. Resonance structures express the different ways a chemical bond can be drawn and represented.



Drawing Resonance Structures
Lewis Structure