Practice Problem: Calculating Equilibrium Concentrations

Professor Dave explains how to calculate equilibrium concentrations using a chemical reaction involving nitrogen and hydrogen to form ammonia. He sets up the problem by providing the concentrations of nitrogen and hydrogen and the equilibrium constant. He then explains how to form the equilibrium constant expression and solve for the unknown ammonia concentration using arithmetic.

What are the concentrations of nitrogen and hydrogen at equilibrium?

What is the equilibrium concentration of NH3 in the given equilibrium system?

How do you generate the equilibrium constant expression for the reaction involving nitrogen and hydrogen?

Explain how the stoichiometric coefficients affect the equilibrium constant expression.

What arithmetic operation is performed to find the ammonia concentration from the equilibrium constant?