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In a reaction A + B2 → AB2 Identify the limiting reagent, if any, in the following reaction mixture. 2.5 mol A + 5 mol B - Chemistry

In a reaction

A + B2 → AB2

Identify the limiting reagent, if any, in the following reaction mixture.

2.5 mol A + 5 mol B

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Solution

A limiting reagent determines the extent of a reaction. It is the reactant which is the first to get consumed during a reaction, thereby causing the reaction to stop and limiting the amount of products formed.

According to the reaction, 1 mol of atom A combines with 1 mol of molecule B. Thus, 2.5 mol of A will combine with only 2.5 mol of B and the remaining 2.5 mol of B will be left as such. Hence, A is the limiting reagent.

Concept: Limiting Reagent
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