Introduction to Stoichiometry with SMores Stoichiometry deals with

Introduction to Stoichiometry with S’Mores! Stoichiometry deals with mole, mass and volume relationships in chemical reactions

� What ingredients do we need to make a S’more? � What do we use to represent the elements?

� Let’s write a balanced equation…

How’d we do? ? The “Balanced” Equation 2 graham crackers + 1 marshmallow + 1 chocolate piece 1 s’more 2 Gc + 1 M + 1 C 1 Gc 2 MC

� What is our ratio? Terminology � Limiting reactant – what you run out of ◦ Limits how much product you can make

Ingredients 2 Graham Crackers 1 Chocolates Number of S’mores possible 10 Chocolates Remaining (unused) Ingredients ______________ ______________ ______________ ______________ ______________ 1 Marshmallows 20 Graham Crackers Total Number of S’mores Made 10 Marshmallows 20 Graham Crackers 5 Chocolates 10 Marshmallows Limiting Reactant

Ingredients Number of S’mores possible Total Number of S’mores Made Remaining (unused) Ingredients 4 Graham Crackers 2 Chocolates 3 Marshmallows ______________ ______________ 10 Graham Crackers 8 Chocolates 10 Marshmallows ______________ ______________ 22 Graham Crackers 5 Chocolates 18 Marshmallows ______________ ______________ Limiting Reactant

Ingredients Number of S’mores possible Total Number of S’mores Made Remaining (unused) Ingredients 24 Graham Crackers 8 Chocolates 8 Marshmallows ______________ ______________ 18 Graham Crackers 5 Chocolates 12 Marshmallows ______________ ______________ Limiting Reactant