Calculating Volume of Reaction Mixture at STP

What is the limiting reagent in the reaction?

Reagents that are fully consumed during the course of a chemical reaction are known as limiting reagents. Which one is the limiting reagent in this specific reaction?

Answer:

In the reaction, the limiting reagent is NO (nitric oxide).

Limiting reagents play a crucial role in chemical reactions. In the given scenario, the reaction involves the following equation:

2NO(g) + O2(g) → 2NO2 (g)

Looking at the initial amounts provided:

400 ml of NO = 2 mol of NO2 + 2 mol of NO

500 ml of O2 = 2 mol of NO2 + 1 mol of O2

This information allows us to determine the limiting reagent, which in this case is NO. By performing the necessary calculations, we find that the reaction mixture's total volume at STP after the reaction goes to completion is 700 ml.