OPTIONAL 4th QUARTER PROJECT:
CHEMISTRY COOKIES
 


  • Bake Mr. P. a batch of cookies and calculate the number of moles of all the ingredients used (show all work).

  • Calculate and report conservation of mass in grams (total weight of ingredients compared to finished product). Any discrepancy must be explained.

  • Illustrate one example of a chemical change.

  • Illustrate one example of a physical change.

 

Molecular Formula Table

Use the following molecular formulas to calculate moles of ingredients.
NOTE: Most of these substances have complex molecular formulas. I have
greatly simplified your project by listing a representative formula only.

 

Anise C10H12O
Baking Soda NaHCO3
Baking Powder 80% NaHCO3

18% KHC4H5O6

2% Other N/A

Brown Sugar C12H22O11
Butter C9H14O6
White (Cane) Sugar C12H22O11
Chocolate 80% C4H8O4

11% C6H12O3N2

4% C9H14O6

2% H2O

3% Other N/A

Cinnamon C9H8O
Cloves C10H12O2
Egg C6H12O3N2
Flour 83% C4H8O4

7% C6H12O3N2

6% H2O

4% Other N/A

Ginger C15H21
Lemon Juice (extract) C6H8O7
Margarine C9H12O6
Milk 85% H2O

15% C9H14O6

Molasses C12H22O11
Pepper C17H19O3N
Salt NaCl
Vanilla C8H8O3

 

N/A - don't worry about these ingredients.

Unit Conversion Table

here is a handy cooking unit conversion link:

http://www.cuisinedumonde.com/convert.php

You may also use the following conversions if you need them:

1 teaspoon of baking soda, 2.84g.
1 teaspoon of vanilla extract, 4.73g.
1 large egg, 50g

 

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