Hon Chemistry 8-29-22 Using Density & HW Review

HON CHEMISTRY – Here’s a pic of some “high density” koi that I saw in Hawaii (at the Dole Pineapple Plantation, of all places!). Great applicaitons of density today! Remember, in chemistry we use math as a tool, therefore we might work problems a little differently in chemistry than you do in your math class.

When working these problems, don’t forget to follow the problem solving steps we discussed today:

  • Analyze – write down what you’re given and what you’re looking for
  • Plan – write a formula where you isolate the unknown on one side by itself
  • Compute – plug in your data, numbers and units; then cancel the units, and if they cancel correctly, go on to the calculator. Be sure and give your answer what the correct units.
  • Evaluate – does your answer make sense, have you used the correct units, do you have the correct sig figs?

Chemistry 8-29-22 Conversion Factor HW & the Big Donut Problem

CHEMISTRY: Lots of great practice today using conversion factors! How did you do on your homework? And what about the big donut problem? If you were absent, be sure and watch this vodcast to make sure you are doing the problems correctly. You must show correct work to get credit.

Were you able to think through the longer conversion factor problems? Remember, you’re not just trying to get an answer. Most importantly, you are learning to express a logical progression of thought – from one unit to another. Keep practicing until you can do it by yourself with no help!!


Photo by Anastasiia Chepinska on Unsplash