Randi+&+Katelyn

__Chocolate Chip Cookies__
__**Ingredients:**__ 2-1/4 cups all-purpose flour 1 teaspoon baking soda 1/2 teaspoon salt 1 cup (2 sticks) butter, softened 3/4 cup granulated sugar 3/4 cup packed brown sugar 1 teaspoon vanilla extract 2 eggs 2 cups chocolate chips

__**Directions:**__ 1. Heat oven to 375 ° F 2. stir together flour, baking soda and salt. Beat butter, granulated sugar, brown sugar and vanilla in large bowl with mixer until creamy. Add eggs; beat well. Gradually add flour mixture, beating well. Stir in chocolate chips. Drop by rounded teaspoons onto ungreased cookie sheet. 3. Bake 8 to 10 minutes or until lightly browned. Cool slightly; remove from cookie sheet to wire rack. Cool completely. Makes about 5 dozen cookies.

__**Balanced Equation:**__

9 F + 4 Bk + 2 S + 8 Bu + 3 Ws + 3 Bs + 4 Ve + 8 Eg + 8 Ch --> 60 cookies


 * __Stoichiometry Calculation__**

Using your balanced equation solve the following problem:

You find yourself hungry for chocolate chip cookies and search for ingredients. You search and find you have enough of most ingredients, however, you only have 5/8 cup of brown sugar and 3/4 teaspoon of vanilla extract. Which item is the limiting ingredient and which is the excess? How many cookies can you bake?

The limiting ingredient is the vanilla extract and the excess ingredient is the brown sugar. After you change the amount of ingredients you will only be able to make 11 cookies instead of the original 60.

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