What are the 3 steps of you use in STOICHIOMETRY??? HINT: you did this yesterday…

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Presentation transcript:

What are the 3 steps of you use in STOICHIOMETRY??? HINT: you did this yesterday…

Step 1: Convert given information to moles…

Step 2: Figure out the coefficient ratio

Step 3: Convert to what you are looking for

Don’t forget to balance the chemical equation and identify the knowns and unknowns.

AND NOW A DISASTER OF CHEMICAL PROPORTIONS!!!

GET READY TO BE A COOKIE CHEMIST Just don’t do experiments on this guy’s cookie…

Limiting Reactant The reactant that determines, or LIMITS, the quantity of product that can be formed over the course of a reaction. The reaction will stop when all of the limiting reactant is consumed.

Limiting Reactant – an extension on stoich How do we find it? Think about how you completed the cookie investigation We have to do stoichiometry MORE THAN ONCE and determine which reactant will produce LESS product. That will be the limiting reactant. Please give me $1 if you are ready to practice!!!

Practice Problems 1) Hg + S  HgS 48.6g 3.6g ? G 2) C 4 H 10 + O 2  CO 2 + H 2 O 215g 75.0g ? g