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Chapter 9 Stoichiometry

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**Pancake Recipe 1 cup flour 2 eggs ½ cup water ¼ tsp baking powder**

Makes 5 pancakes We can write this recipe as an equation.

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**1 cup flour + 2 eggs + ½ cup water + ¼ tsp. baking powder → 5 pancakes**

If I have a 3 cups of flour how many pancakes can I make?

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**1 cup flour + 2 eggs + ½ cup water + ¼ tsp. baking powder → 5 pancakes**

How many cups of water will I need if I have 1 dozen eggs?

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**1 cup flour + 2 eggs + ½ cup water + ¼ tsp. baking powder → 5 pancakes**

How many tsp. of baking powder will I need to make 13 pancakes?

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**Chemical Equations are Recipes for Chemicals**

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**IT TAKES MOLES TO MOVE 5C + 2SO2 → CS2 + 4CO**

How do we interpret this equation? 5 mol C + 2 mol SO2 → 1 mol CS2 + 4 mol CO IT TAKES MOLES TO MOVE

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**IT TAKES MOLES TO MOVE 5C + 2SO2 → CS2 + 4CO**

7.42 mol C will produce how many mol CO? IT TAKES MOLES TO MOVE

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**IT TAKES MOLES TO MOVE 5C + 2SO2 → CS2 + 4CO**

3 mol CS2 require how many mol C? IT TAKES MOLES TO MOVE

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**IT TAKES MOLES TO MOVE C6H12O6 + 6O2 → 6CO2 + 6H2O**

3.60 mol C6H12O6 produce how many mol CO2? IT TAKES MOLES TO MOVE

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**IT TAKES MOLES TO MOVE 2KClO3 → 2KCl + 3O2**

5.42 mol KClO3 will produce how many mol O2? IT TAKES MOLES TO MOVE

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