CHEMISTRY: Great job today… although, it was kind of weird watching you chew gum in class! Double check your calculations, sig figs, etc. Remember you are finding the percent of SUGAR in gum, so that means the mass of what goes on top? Show all your data – everything you measured, and everything you calculated. And don’t forget the conclusion! Lab reports are due tomorrow.
BTW – I think you’ll find that percent composition problems are really easy to catch on to. Make sure, though, you can write chemical formulas (I won’t give them to you!) and that you’ve memorized the formulas for acids and those chemical names for common substances so that you’ll have something to find the percent composition of!
It was weird chewing gum in class! I enjoyed that lab.
I was wondering, when is the best time to re-take my test? Is Friday 5th period okay?
Leah – Sure!
I really enjoyed this lab! and the gum!
Could I possibly retake my test friday 2nd or 7th period?
Abby – Please come talk with me first thing tomorrow. Let’s make sure you are ready!
A simple but fun and effective lab for percent composition