CH301H - Principles of Chemistry I: Honors
Fall 2015, Unique
49310

Lecture Summary, 27 August 2015


Introduction: Today we discussed basic problem solving techniques.  We covered the importance of careful analysis of units and the magnitude of the result.  Whenever you solve a problem, you should look at your final answer and ask yourself qualitiative questions about whether that answer makes any sense.  Do the units make sense?  Should the number be > or < 0?  Should it be > or < 1?  Does the magnitude of the number make sense?  If your number doesn't make good physical sense, then you have made a mistake that you need to go back and find.  Getting into this habit will allow you to solve complex problems and have confidence in your answer, even if you don't know what it is.

We also briefly began talking about Rutherford's gold foil experiment to determine the structure of the atom, but I'll save discussion on that for the next lecture.