A Mixture of Nitrogen and Hydrogen Was Allowed to Come $\rightleftharpoons$

question 45

Multiple Choice

A mixture of nitrogen and hydrogen was allowed to come to equilibrium at a given temperature. 3H₂ + N₂ $\rightleftharpoons$ 2NH₃
An analysis of the mixture at equilibrium revealed 2.1 mol N₂, 2.8 mol H₂, and 1.8 mol NH₃. How many moles of H₂ were present at the beginning of the reaction?

• A) 2.8
• B) 4.2
• C) 4.6
• D) 5.5
• E) 4.0

---

Definitions:

Ethnic Groups

Collectives of people who share a common identity based on factors like culture, language, ancestry, or national origin.

Cultural Differences

Variations in the ways of life, beliefs, norms, and practices among different societies or groups of people.

Paramount Chiefs

The highest-ranking leaders in certain tribal societies who exercise authority over a number of smaller chiefs and their tribes.

Kpelle Chiefdoms

A historical political organization of the Kpelle people, primarily located in Liberia and Guinea, characterized by hierarchical leadership structures.