How do you tell if you must check for the limiting reactant in a given problem?

Question

How do you tell if you must check for the limiting reactant in a given problem? Any sure fire ways of making sure? The problems I am dealing with have a multitude of steps past checking for the LR, so having a sure fire way as to whether or not you have to check would be most appreciated. How do you tell if you must check for the limiting reactant in a given problem? Any sure fire ways of making sure? The problems I am dealing with have a multitude of steps past checking for the LR, so having a sure fire way as to whether or not you have to check would be most appreciated. How do you tell if you must check for the limiting reactant in a given problem? Any sure fire ways of making sure? The problems I am dealing with have a multitude of steps past checking for the LR, so having a sure fire way as to whether or not you have to check would be most appreciated.

Explanation / Answer

The steps to check Limiting agent should be as follows :

1) Balance the given chemical reaction

2) COnvert all the given masses of the reactant into moles by dividing with respective molar mass

3) Divide the no of moles of each Reactant by its respective stiochiometric coefficient in balanced reaction.

The smallest value after division will be the limiting reagent..

Its the sure shot way of finding Limiting raegent in any chemical reaction

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