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How do you know which reactant in a process is the limiting reactant?
Wiki User
∙ 13y ago
The limiting reactant or reagent can be determined by calculating the number of moles of each reactant/reagent. Whichever is the lowest number of moles is the limiting reagent in the reaction, assuming that stoichiometry is 1;1
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoTo find the limiting reagent, all u need is the molar ratio of your balanced equation, for eg,
H2SO4 + 2NaOH ---> Na2SO4 + 2H20
Clearly, from the equation, 1 mol of acid will require 2 mols of the NaOH to react.
Now let say you have 25mols of sulphuric acid and 50 mols of NaOH, the no of mols of NaOH present is twice as much as that of the acid so it is not a limiting reagent problem.
If you have 50 mol of acid and 50 mol of the alkali, now we have a limiting reagent problem, 50 mol of acid would require 100mol of NaOH but we only have 50. So, from the 50 mols of alkali, we deduct that (50/2)=25mol of acid will react. And the remaining (50-25)=25mol of acid will not. Therefore, the NaOH is the limiting reagent here.
Wiki User
∙ 12y agoIn an experiment,17.75 g of potassium superoxide KO2 is reacted with 9.03x1023 molecules of H2O to produce potassium hydroxide and oxygen gas.
4KO2 + 2H2O > 4KOH +3O2
determine the limiting reactant and calculate the volume of oxygen gas liberated at S.T.P (at S.T.P, 1 mol gas=22.4dm3)
Wiki User
∙ 10y agoThe limiting reagent is the substance you have least of. To determine the limiting reagent you first have to make sure your chemical equation is balanced, then you can use stoichiometry to calculate how much product is produced by each reactant. According to your results the product that produces the least product is what is known as your limiting reagent or sometime known as the limiting reactant which is the same thing.
Wiki User
∙ 13y agoThe molecular weight and the number of moles of the reactants plus the equation for the reaction will give the answer.
Wiki User
∙ 13y agoChubby sauce slurp!!
Wiki User
∙ 11y agome
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What is the reactant called that gets used up first?
The Limiting Reactant is the reactant that runs out first in a reaction.
Why is iron is a limiting reactant?
It is unique from reaction to reaction. If it is the more basic question that I think it might be, you always look at the moles of each reactant and what ratio they react. If they react 1:1, then the reactant with less moles will be consumed first, and therefore quenches that particular reaction naturally
What reactant gives the lowest yield by limiting the amount of product?
A reactant that gives the lowest yield by limiting the amount of product is called a limiting reactant. The limiting reactant will run out, so that only a limited amount of product can be made from the reactants.
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.
How limiting reactant control a reaction?
Using an excess of another reactant limits a reactant.
What is the reactant called that gets used up first?
The Limiting Reactant is the reactant that runs out first in a reaction.
Why is iron is a limiting reactant?
It is unique from reaction to reaction. If it is the more basic question that I think it might be, you always look at the moles of each reactant and what ratio they react. If they react 1:1, then the reactant with less moles will be consumed first, and therefore quenches that particular reaction naturally
What is the limiting reactant in alka-seltzer?
Sodium bicarbonate is the limiting reactant.
What reactant gives the lowest yield by limiting the amount of product?
A reactant that gives the lowest yield by limiting the amount of product is called a limiting reactant. The limiting reactant will run out, so that only a limited amount of product can be made from the reactants.
Why is the term limiting used to describe the limiting reactant?
The term "limiting" is used because the limiting reactant limits the amount of product produced.
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.
How limiting reactant control a reaction?
Using an excess of another reactant limits a reactant.
What is the reactant that runs first out in a reaction called?
The Limiting Reactant is the reactant that runs out first in a reaction.
What is the definetions of limiting reactant in chemistery?
In a chemical reaction the limiting reactant is the reactant that there is the least of in the reaction; it determines the amount of product formed. In a chemical reaction it is the reactant that gets completely "used up"
Why is the theoretical yield of a reaction determined only by the amount of the limiting reactant?
Because the limiting reactant It is completely consumed before the other reactant.
How the limiting reactant control the product?
The yield of the reaction depends in this case only on the concentration of the limiting reactant.
the reactant that is completely used up in a reaction is called a?
Limiting reactant
