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  1. the limiting reactant is how much of a compound or solution you need to make an experiment possible. the excess reactant is the amount left over from the other compound or solution used (the other reactant that is used)
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βˆ™ 2010-12-03 05:48:09
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Q: What is the difference between a limiting reactant and an excess reactant?
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What is the difference between limiting reactant and excess reactant?

A limiting reagent is completely used up during the reaction whereas the excess reagent is the left over substance after the reaction has taken place. Excess reagent = initial reagent amount - limiting reagent amount.


Is the limiting reactant in a reaction always in excess?

No, quite simply, the limiting reactant limits the reaction and determines how much of the products are made. The excess in the reaction is just called the "excess reactant", which still remains after the limiting reactant is used up.


Limiting a reactant is often accomplished by?

Using an excess of another reactant limits a reactant.


Does a decomposition reaction decompose to a limiting reactant and a theoretical reactant?

there is a difference between decompositon reaction and to decompose the reaction mixture in (for example ice/HCl) n'mixture which for lmiting the excess reagents


What is Non Limiting Reactant?

The non-limiting, or excess reactant, is the reactant that does not expire first in a reaction. There will be some of this leftover after the reaction goes to completion.


Distinguish between limiting reactant and excess reactant in a chemical reaction?

The Limiting Reactant is the smaller number once you compare the two reactants with one product. The product that you are comparing them both with must be the same. The Excess Reactant is the larger number, or the amount left over in the chemical reaction.


What is limiting reagent and excess reagent?

limiting reactant/reagent is the reactant/reagent that is in lesser amount in terms of the number of moles. this is the reactant/reagent that determines the theoretical yield of a product(s) in a chemical reaction excess reactant/reagent is the reactant/reagent that is in greater amount in terms of the number of moles.


Why does the amount of product formed is directly proportional to the amount of limiting reactant used?

because the limiting reactant is not in excess so it's all used up . as the limiting reactant is used up the reaction stops so no more product can be made.


Why is it necessary to identify the limiting reactant when you want to know how much product will form in a chemical reaction?

The limiting reactant tells you how much of each reactant is formed. If you use the excess material a false answer for the calculated products will come out.


Why is limiting reactants important in stoichiometry?

Limiting reactants are the reactants that are used up first. And once they are used up, they stop, or limit, the reaction. So the amount of product that can be produced depends on the limiting reactant. The other reactant, the one in excess, would predict a larger amount of product. But once we produce the amount of product predicted by the limiting reactant. The limiting reactant is used up and the reaction stops.


How do you identify limiting reagent and excess reagent?

The limiting reagent is the reactant that would yield the least amount of product, whereas the reagent in excess/excess reagent is the reactant that would yield the most amount of product or what would be left over. In order to identify which reagent is excess and which reagent is limiting, you must convert the mass of reach reactant to the mass of the product.Find the limiting reagent:__A + __B --> __X1. Multiply the mass of the reactant by the # molecules of the product and its molar mass.2. Divide the above by the # molecules of the reactant which is multiplied by its molar mass.Mass reactant A --> mass product XMass reactant A # molecules X x molar mass X = Mass product yielded by A--------- # molecules A x molar mass AMass reactant B --> mass product XMass reactant B # molecules X x molar mass X = Mass product yielded by B--------- # molecules B x molar mass BWhichever mass is the lowest is the limiting reagent; whichever mass is the highest is the reagent in excess.


Can the mass of the limiting reagent be higher than the mass of the excess reagent?

it may be , the limiting reactant is that which is totally consumed during the reaction but its amount must be less than required amount with respect to excess reactant for example, H2SO4 + 2NaOH = Na2SO4 + 2H2O in this reaction suppose acid is 95 g and base is 85 g but acid with higher amount is the limiting reactant and base is in excess. Essentially, it's possible whenever the molecular weight of the limiting reagent is higher than the molecular weights of the other reagents.

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