# Chemistry 5-18-11 Gas Laws Overview, Pt. 2

CHEMISTRY: How much fun can you have with a cola can? Wow! Did you have a heart attack? And what about those gas laws? From Wednesday, here’s the last of the info on Charles’ Law and Gay-Lussac’s law.

# Chemistry 9-13-10 Density

CHEMISTRY – So you thought Goodman Road was getting crowded! How’s this for a “high density” city? Great job on the density problems 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. And finally, evaluate – does your answer make sense, have you used the correct units, do you have the correct sig figs? Wait – scratch that last thing, we’ll do sig figs in a couple of days. You’ll just have to wait!

# Hon Chemistry 9-10-10 Derived Units

HONORS CHEMISTRY – Hey guys, here’s a pic of the high density koi that I saw in Hawaii (at the Dole Pineapple Plantation, of all places!) that I was telling you about in class today. So do you feel comfortable with the derived units/formulas that we discussed? Here’s the lecture from Friday. Be sure and practice the density problems and let me know Monday how you’re doing with them. Have a great weekend!

# Chemistry 9-10-10 Derived Units

CHEMISTRY – Hey guys, here’s the lecture from Friday on derived SI units. I think you’ve done a lot of this already, but make sure you understand the conceptual side of density. We’ll work density problems Monday. Don’t forget your calculators!

# Chemistry 8-23-10 Intro to Chemistry

CHEMISTRY: Here’s the lecture from Monday on the intro to chemistry – your first official chemistry lecture! Good job making applications with the branches of chemistry and types of scientific work! Don’t forget to check your syllabus for homework. You might want to go ahead as soon as you can and begin memorizing the symbols of the elements. Is that something you’ve had to do in your other classes? Oh – and does anyone have questions about your project? Much to do on a Monday!!

# Hon Chemistry 8-23-10 Intro to Chemistry

HON CHEMISTRY: You survived your first official chemistry lecture! Did you think I was talking at the speed of light? Or rather sound? Good job making applications with the branches of chemistry and types of scientific work! We’ll finish talking about the properties of matter tomorrow. Don’t forget to check your syllabus for homework. You might want to go ahead as soon as you can and begin memorizing the symbols of the elements, as well as the atomic numbers and mass numbers for elements 1 – 30. Is that something you’ve had to do in your other classes? Oh – and does anyone have questions about your project? Much to do on a Monday!!

# Chemistry 9-15-09 Density

CHEMISTRY – Great job on the density problems 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. And finally, evaluate – does your answer make sense, have you used the correct units, do you have the correct sig figs? Wait – scratch that last thing, we’ll do sig figs in a couple of days. You’ll just have to wait!

# Chemistry 9-14-09 Derived Units

CHEMISTRY – Hey guys, here’s the lecture from Monday on derived SI units. I think you’ve done a lot of this already, but make sure you understand the conceptual side of density. We’ll work density problems tomorrow.

# Hon Chemistry 9-10-09 Derived Units

HON CHEMISTRY – Hey guys, here’s a pic of the high density koi that I saw in Hawaii (at the Dole Pineapple Plantation, of all places!) that I was telling you about in class today. So do you feel comfortable with the derived units/formulas that we discussed? Be sure and practice the density problems and let me know Monday how you’re doing with them. Have a great extra long weekend!