4/3 Chemistry update and homework due 4/10

Hi folks,

Today we did a rather wacky lab to try to get a better feel for chemical equations and the concept of stoichiometry. No recording this week since we just did the lab for the entire class.

Homework for next week:
Most of you finished some of this in class but I'd like you to hand in...

1. How many moles of borax did you use?

2. How many moles of glue did you use?

3. How many moles of water did you use?

4. If you wanted to create 1000g of silly putty, (and we all do) how many moles of Borax would you need?

5. How many moles of water would you need?

6. How many moles of glue would you need?

7. If you wanted to create 1000g of silly putty, how many grams of Borax would you need?

8. How many grams of water?

9. How many grams of glue?

(You read about these laws way back in January. They are in chapter 3 if you need review.)
10. This experiment is also a great example of the Law of Conservation of Mass. Tell my why it's such a great example.

11. Not only is it a good example of the Law of Conservation of Mass but it's also a great example of the Law of Definite Proportions. How does this experiment illustrate the law of Definite Proportions?