Convert all given information into moles most likely, through the use of molar mass as a conversion factor. Calculate the mole ratio from the given information.
Use the amount of limiting reactant to calculate the amount of product produced. If necessary, calculate how much is left in excess of the non-limiting reagent. How to Find the Limiting Reagent: Approach 2 Find the limiting reagent by calculating and comparing the amount of product each reactant will produce. Balance the chemical equation for the chemical reaction. Convert the given information into moles. Use stoichiometry for each individual reactant to find the mass of product produced.
The reactant that produces a lesser amount of product is the limiting reagent. The reactant that produces a larger amount of product is the excess reagent. To find the amount of remaining excess reactant, subtract the mass of excess reagent consumed from the total mass of excess reagent given. The balanced chemical equation is already given. If all of the 0. Because there is an excess of oxygen, the glucose amount is used to calculate the amount of the products in the reaction. Therefore, the mole ratio is: 0.
Mg produces less MgO than does O 2 3. O 2 produces more amount of MgO than Mg Step 6: Find the amount of remaining excess reactant by subtracting the mass of the excess reagent consumed from the total mass of excess reagent given. Mass of excess reagent calculated using the limiting reagent:.
Solution Using Approach References Petrucci, Ralph H. Harwood, Geoffery F. Herring, and Jeffry D. General Chemistry. New Jersey: Pearsin Prentice Hall, Staley, Dennis.
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To determine how much NaOH is produced by each reagent, use the stoichiometric ratio given in the chemical equation as a conversion factor:. Then convert the grams of each reactant into moles of NaOH to see how much NaOH each could produce if the other reactant was in excess. Boundless vets and curates high-quality, openly licensed content from around the Internet.
This particular resource used the following sources:. Skip to main content. Mass Relationships and Chemical Equations. Search for:. Limiting Reagents. Learning Objective Determine the limiting reagent and the amount of a product formed in a given reavion. Key Points The limiting reagent is the reactant that is used up completely.
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