Chem: W9L2- Stoichiometry, Limiting Reactants, Theoretical Yield and % Yield

What questions should you ask yourself when you want to predict amount of products?

Was my reaction complete?

Was my reaction efficient?

What questions should you ask yourself when you want to predict the amount of reactant required?

Is there a limiting amount of reactant to curb amount of products?

How much do i need to add to make the amount I want?

The number of pizzas you can make depends on the amount of the ingredients you have

pizza recipe = 1 crust + 5 ox tomato sauce + 2 cups cheese —> 1 pizza

if we have 4 crusts, 10 cups of cheese, and 15 oz of tomato sauce. How many pizzas can we make?

at least 3

the reactants that limits the amount of product is called the ____________

limiting reactant

-When this reactant is used up, the reaction stops and no more product is made

-AKA limiting reagent

-The limiting reactant gets completely consumed

Reactants not completely consumed are called _____________. the excess reactants are intermixed with the products

excess reactants

The amount of product that can be made from the limiting reactant is called the _______________

theoretical yield

Assume that while making pizzas, we burn a pizza, drop one on the floor, or other uncontrollable events happen so that we only make two pizzas.

The actual amount of product made in a chemical reaction is called the _________

actual yield

The ___________ is the ratio