The limiting reactant is defined as the reactant which is consumed at the end of the reaction.
The maximum amount of products that can be formed in a chemical reaction is limited by the amount of the limiting reactant.
We can determine the limiting reactant by calculating the amount of products that form through each of the reactants. This can be done by doing a mole to mole comparison between the reactants and the products. For this, we will use the coefficients of reactants and products from the balanced equation.
The reactant, that produces the smallest amount of products, is the limiting reactant.
For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants.
2Na(s) + Br2(g) → 2NaBr(s)
2.5 mol Na, 1 mol Br2
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