STOICHIOMETRY How can I use stoichiometry to calculate reactant and product amounts?

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Presentation transcript:

STOICHIOMETRY How can I use stoichiometry to calculate reactant and product amounts?

What is the mole ratio of smores? Where do mole ratios come from? 2 Gc + 1 M + 4 Cp  1 Smore

Molar Ratios … help to relate quantities of reactants to products. are derived from a balanced equation. adhere to the Law of Conservation of Matter. Bread : Ham 2: 1

Converting Mass to Mass Problems Use Road Map Provided Follow Directions – like following a recipe!

Ex. WHAT MASS OF CARBON IS REQUIRED TO REACT WITH OXYGEN TO PRODUCE 12g OF CO? _____ C + ______ O 2  ______ CO 2 12 Circle the known. Box what you are trying to find. GIVEN 12 g CO g CO mol CO C: 1 x 12 = 12 O: 1 x 16 = g/ mol 28 1 mol CO mol C 2 2 g C C: 1 x 12 = 12 g/ mol 1 12 = 5.14 g C

I need help! Where should I turn? Go to my WIKISPACE Tutorial Links Available Visual Guide to Map Examples Worked by Step Different Strokes for Different Folks

Mass to Volume Conversions

EX. HOW MANY LITERS OF OXYGEN GAS CAN BE PRODUCED BY THE DECOMPOSITION OF 10 g OF POTASSIUM CHLORATE? _____ KClO 3  ______ KCl + _____ O Circle the known. Box what you are trying to find. GIVEN 10 g KClO 3 g KClO 3 mol KClO 3 K: 1 x 39.0 = 39.0 Cl: 1 x 35.5 = 35.5 O: 3 x 16 = g/ mol mol KClO 3 mol O L O mol any STP = 22.4 L =