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Published byChristopher McCormick Modified over 7 years ago
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CHEMISTRY Limiting Reagents in Chemical Reactions
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Recipe for a Great Ice-Cream Sundae 2 scoops vanilla ice- cream 1 Ripe Cherry 50 mL syrup
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How many sundaes will 8 scoops of vanilla ice-cream produce ?
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How many sundaes will 6 cherries make? 6
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How many sundaes can you make using 100 mL syrup ? 100 mL syrup
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How many sundaes can you make using the following combination ? 8 SCOOPS OF VANILLA ICE CREAM 6 CHERRIES 100 mL SYRUP
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Which reagent was responsible for making the smallest amount of product ? (Hint: Refer to the previous slides) Chocolate sauce is the “limiting reagent”. The amount available (100 mL) is sufficient to make only two sundaes.
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How much of each reagent is left behind after making the sundaes ? 4 scoops left behind after using up 4 scoops 4 cherries left behind after using 2 cherries No chocolate sauce is left behind as all 100 mL was used in making the two sundaes. Limiting Reagents are completely consumed at the end of the reaction.
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Properties of Limiting Reagents Limiting Reagent is a reactant in a chemical reaction. Limiting Reagent compared to other reactants produces the smallest amount of product. Limiting Reagents are completely consumed at the end of a chemical reaction.
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