SciHawks

AP Chem - we saw how each of the two-variable relationship gas laws are just a subset of the 4-variable gas law with two variables held constant.
We then began our explanation of each gas law by using THE two factors that CAUSE gas pressure:
1. collision frequency of the gas molecules
2. average KE/force of the gas molecule collisions.

We will write the gas law explanations out in logical and sufficient detail, with drawings, tomorrow.
For now, check out the animations on Edline, and keep working on the practice problems.

Bio - our unit exam on cells and cell transport is tomorrow.
Many of you gave poor, insufficient, or downright false explanations of  osmosis through a cell under hypo/iso/hypertonic solution conditions. Start from scratch and practice until you can prove to yourself exactly what we painstakingly did and drew step by step in the notes.
Today, we applied three different examples of showing, using indicators, the substances that can and cannot diffuse through a model cell membrane (celluloid).
Use the many review materials on Edline to get you even more ready for tomorrow's exam.