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STOICHIOMETRY

STOICHIOMETRY. How can I use stoichiometry to calculate reactant and product amounts?. What is the mole ratio of smores ?. 2 Gc + 1 M + 4 Cp  1 Smore. Where do mole ratios come from?. Molar Ratios …. help to relate quantities of reactants to products.

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STOICHIOMETRY

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

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

  3. 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

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

  5. 2 1 2 Ex. WHAT MASS OF CARBON IS REQUIRED TO REACT WITH OXYGEN TO PRODUCE 12g OF CO? _____ C + ______ O2 ______ CO Circle the known. Box what you are trying to find. 2 12 12 g CO mol CO 1 mol C g C = 5.14 g C GIVEN 1 2 mol C mol CO g CO 28 C: 1 x 12 = 12 O: 1 x 16 = 16 + 28 g/ mol C: 1 x 12 = 12 g/ mol

  6. 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

  7. Mass to Volume Conversions

  8. EX. HOW MANY LITERS OF OXYGEN GAS CAN BE PRODUCED BY THE DECOMPOSITION OF 10 g OF POTASSIUM CHLORATE? 2 2 3 _____ KClO3 ______ KCl + _____ O2 Box what you are trying to find. Circle the known. 3 22.4 10 g KClO3 mol KClO3 1 molO2 L O2 = GIVEN 1 2 g KClO3 molO2 122.5 mol KClO3 K: 1 x 39.0 = 39.0 Cl: 1 x 35.5= 35.5 O: 3 x 16 = 48 + 122.5 g/ mol 1 mol any gas @ STP = 22.4 L

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