S'Mores

2 graham crackers
1 marshmallow
1 chocolate square

Roast marshmallow over open fire. Place hot marshmallow on graham cracker; top with chocolate square and additional graham cracker. Enjoy!

Yield: 1 S'More

If you have done any cooking, you know that a recipe tells you what ingredients are needed (and how much), instructions for making the food, and the yield (or how much that recipe would make). S'mores are a treat made by placing a roasted marshmallow and a square of chocolate between two graham crackers. While you usually wouldn't need a written recipe for a simple treat such as this, one could be written. This recipe tells you that in order to make one s'more, you need two graham crackers, one marshmallow and one square of chocolate.

Suppose you and a group of 15 friends are planning a cookout. You are in charge of the S'mores. You figure each person will eat two s'mores. You purchase a box of graham crackers (contains 70 crackers), a bag of marshmallows (contain 40 marshmallows) and eight chocolate bars (which can be broken into 32 chocolate pieces).

How many s'mores will you be able to make?

32 35 40 70

Would the 32 chocolate pieces be enough to make this many s'mores?

Good! In this case, the chocolate limits the number of s'mores you can make (If you try and make 40 s'mores, you will run out of chocolate after 32 are made.).

This example covers the basic principles involved in solving stoichiometry problems - it just deals with marshmallows, chocolate, and a recipe instead of chemical formulas and a balanced chemical equation.

Clicking on the s'more below will close this window and return to the module you were working in.