E ël Gizmos
Date
Name:
Student Exploration: Stoichiometry
Directions: Follow the instructions to go through the simulation. Respond to the questions and
prompts in the orange boxes.
Vocabulary: Avogadro's number, balanced equation, cancel, coefficient, conversion factor, dimensional
analysis, molar mass, mole, molecular mass, stoichiometry
Prior knowledge Questions (Do these BEFORE using the Gizmo.)
1. A 250 mL glass of orange juice contains 22 grams of sugar. How much sugar is in a two-liter 2,000 ml)
bottle of orange juice?
2. It requires two sticks of butter to make a batch of 20 cookies. How much butter will it take to make 150
cookies?
Now equation
Pes) SCO
2 CO,
Gizmo Warm-up
Just as a cook follows a recipe to decide how much of each
Ingredient to add, a chemist uses stoichiometry to determine
the amounts of substances involved in chemical reactions. The
Stoichiometry Gizmo allows you to try your hand at figuring out
the amounts of reactants and products that take part in a
chemical reaction
To begin, check that this equation is shown:
New question
How many moes of carbon monoxid (CO)
Fe
70,0, + 3C02Fe +300,
1. Look at the coefficients (such as the "3" in 3CO) in front of each substance in the equation. The