High School

Determine the limiting reactant and calculate the number of grams of nitrogen dioxide, NO₂, that can be formed when 105 g of nitrogen (N₂) reacts with 98.5 g of oxygen (O₂).

\[ \text{Reaction: } \text{N}_2(g) + 2\text{O}_2(g) \rightarrow 2\text{NO}_2(g) \]

Answer :

Final answer:

To determine the limiting reactant and calculate the grams of nitrogen dioxide that can be formed, we need to compare the moles of nitrogen and oxygen and use stoichiometry.

Explanation:

To determine the limiting reactant and calculate the number of grams of nitrogen dioxide (NO₂) that can be formed, we first need to calculate the moles of nitrogen (N₂) and oxygen (O₂) using their respective molar masses. In this reaction, 1 mole of N₂ reacts with 2 moles of O₂ to produce 2 moles of NO₂. By comparing the moles of N₂ and O₂ available, we can identify the limiting reactant which is the one that is completely consumed. Once we know the limiting reactant, we can use stoichiometry to calculate the moles of NO₂ produced. Finally, the moles of NO₂ can be converted to grams using the molar mass of NO₂.

Learn more about stoichiometry here:

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