HON CHEMISTRY – Great job with scientific notation today! Hard to believe that you’ll be working with things smaller than a grain of pollen! Did you realize your calculator was so smart? Have you conquered it yet?
Great review on density problems! 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 these problem solving steps:
- 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?
Tomorrow let’s apply density a different way!
flickr photo by Robert S Donovan