SciHawks

Bio - we discussed Lamarck's Theory of Evolution via use and disuse/inheritance of ACQUIRED traits; this theory was disproved via Weismann's experiments on "tail-less" mice. Weismann made sure that his experimental group of mice has "disuse" of their tails- he chopped the tails off. Lamarck's prediction was that the acquired trait of "tail-lessness" would be inherited by the offspring of these mice. In all of these experiments, the offspring of the tail-less mice had normal sized tails, at maturity; thus, Lamarck's theory was NOT supported and practically speaking, "disproved" in repeated experiments.

AP Chem - Ksp/Thermo exam tomorrow.
Be prepared- these questions are inherently tough but they will be straightforward (as in the notes):

There will be questions on the following:
Will a precipitate form?
Selective precipitation and the subsequent calculation of "complete" precipitation.
All thermodynamic relationships: calculations of delta G, H, and S.


Knowing the difference between delta G, H, or S of FORMATION vs. delta G, H, or S of reaction and when it is appropriate to use each or any of these quantities.
Application of Hess's Law.
Know how to predict whether a reaction is spontaneous or not and how a temperature change will affect K or delta G standard (you must explain via Le Chatelier's Principle!).
Know how to find the temperature at which a reaction or process is at equilibrium at STANDARD pressure i.e. delta G standard = 0  therefore T = delta H standard / delta S standard assuming that delta H standard  and delta S standard are constant over a large temperature range.