12
Mar
Which Of The Following Is True Of A Limiting Reagent I It Is A Reactant Ii It Limits The Amount Of Product Formed Iii It Determines The Maximum Amount Of Product Formed. но thо oh нон-с compound a. The reason there is a limiting reactant is that elements and compounds react according to the mole ratio between them in a balanced chemical equation. The limiting reagent or limiting reactant or limiting agent in a chemical reaction is a reactant that is totally consumed when the chemical reaction is completed. The reactant that is used up is the limiting reagent.
More typically one reagent is completely used up and others are left in excess perhaps to react another day. A limiting reagent limits the amount of product. All stoichiometric calculations must be based on the limiting reagent. It limits the amount of product formed. The amount of product formed is limited by this reagent since the reaction cannot continue without it. To determine the amount of excess H 2 remaining calculate how much H 2 is needed to produce 108 grams of H 2 O.
The limiting reactant is the reactant that in principle produces the least amount of products c.
Much more water is formed from 20 grams of H 2 than 96 grams of O 2Oxygen is the limiting reactant. For each reagent suggested above in ii explain the role of the reagent in the reaction to iv form compound e. The reason for using a limiting reactant is that the elements and compounds react with each other in a balanced chemical equation according to the mole ratio between them. In this video well determine the limiting reactant for a given reaction and use this information to calculate the theoretical yield of product. In other words it determines the extent of reaction. All stoichiometric calculations must be based on the limiting reagent.