LT#3: Stoichiometry and Limiting Reactants

Question 1

Define Stoichiometry

Answer 1

A mathematical method that chemists use to change information about one chemical in a reaction into information about any other chemical they are interested in.

Question 2

Define Mole Ratio

Answer 2

x Want / Have using coefficients from balanced chemical equation

Question 3

Define Limiting Reactant

Answer 3

The reactant that runs out first. When used up, the reaction stops.

Question 4

What are the steps to determine the Limiting Reactant?

Answer 4

1. Write chemical equation if necessary
2. Change amounts of both chemicals into moles (have to compare amount of particles)
3. Convert both amounts into moles of the SAME chemical (so exactly the same unit).
4. The original chemical that gives you the small number of moles is your limiting reactant.