Chemistry the Week of 26 September to 30 September

Regents Chemistry

Topics Covered: Heating and Cooling Curves, formulas for calculating heat energy lost or gained by a sunstance as it is heated, cooled, or undergoing a phase change.

Quiz: Period 2 Thursday 29 September
         Period 4 Friday 30 September

Lab 2 Heat of Fusion Water: Period 2/3 Friday 30 September
                                            Period 3/4  Thursday 29 September

Lab 1 Measurement and Density due for all classes on 30 September by 3:00

Homework: pp. 75-76; 19, 20, 26, 27, 28 plus the following problem from the board: What is the total amount of energy needed to heat a 20 gram sample of water from -10 degrees to steam at 115 degrees?  Show work.  DUE: Thursday, 29 September

AP Chemistry

Topics Covered: Electron configurations of many-electron atoms, orbital diagrams.

Quiz: Atomic Structure - Friday, 30 September

Homework: pp. 232-233 61, 63, 65, 66, 68, 70, 71, 77, 81.  DUE: 30 Friday, September

Let me know if you have questions!

Musica Universalis

That would be the music of the spheres.  In the old days it was thought that the movements of the heavenly spheres (sun, moon, stars etc.) generated a form of music through their harmonic and proportional movements.  This was not thought to be a music that you could hear, but more of a mathematical concept (and for Aristotle even religious to the extent that the motion was sustained by the Prime Mover).  Wikipedia has an intertesting article on this topic here.  I bring it up at all because two students of mine came across this recent news.  It turns out that Saturn does produce its own "music", and thanks to modern science we can now hear it.  It is a phenomenal and almost haunting series of sounds.  Give it a listen if you have a chance.

Thanks to Alyssa Gullotto and Shawn Hoose for passing the link along.

Welcome

This blog was set up to be a tool for my high school chemistry classes, both regents level, and AP. From this page students (and parents) will be able to find homework assignments, post questions, and discuss chem/science topics. I encourage students to visit frequently and use this as a way to keep on top of their work. Let me know how I can help you.