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Limiting Reactants

Limiting Reactants. What Is a Limiting Reactant?. Many cooks follow a recipe when making a new dish . Let’s look at a recipe for the formation of a double cheeseburger:. 1 hamburger bun. 1 tomato slice. 2 slices of cheese. 2 burger patties. How many hamburger buns do you need?. 5.

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Limiting Reactants

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  1. Limiting Reactants

  2. What Is a Limiting Reactant? • Many cooks follow a recipe when making a new dish. • Let’s look at a recipe for the formation of a double cheeseburger:

  3. 1 hamburger bun 1 tomato slice 2 slices of cheese 2 burger patties

  4. How many hamburger buns do you need? 5 • If you want to make 5 double cheese burgers: • How many hamburger patties do you need? 10 • How many slices of cheese do you need? 10 • How many slices of tomato do you need? 5

  5. 1 • 1 bun, 2 patties, 2 slices of cheese, 1 tomato slice • How many double cheeseburgers can you make if you start with: 2 • 2 buns, 4 patties, 4 slices of cheese, 2 tomato slices • 1 mole of buns, 2 moles of patties, 2 moles of cheese, 1 mole of tomato slices 1 mole • 10 buns, 20 patties, 2 slices of cheese, 10 tomato slices 1

  6. In chemical reactions…. Limiting Reactant—the reactant that restricts the amount of product that can form in a chemical reaction Reactant in Excess—the substance not fully used in a chemical reaction; some remains leftover

  7. Sample Problem—pg 313 Silicon dioxide (quartz) readily reacts with hydrogen fluoride according to the following equation: SiO2 + 4HF  SiF4 + 2H2O If 6.0 mol HF is added to 4.5 mol SiO2, which is the limiting reactant?

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