Ammonia Reacts with Fluorine to Produce Dinitrogen Tetrafluoride and Hydrogen

question 75

Multiple Choice

Ammonia reacts with fluorine to produce dinitrogen tetrafluoride and hydrogen fluoride (used in the production of aluminum, in uranium processing, and in the frosting of light bulbs) . 2NH₃(g) + 5F₂(g) → N₂F₄(g) + 6HF(g)
How many moles of NH₃ are needed to react completely with 13.6 mol of F₂?

• A) 34.0 mol
• B) 27.2 mol
• C) 6.80 mol
• D) 5.44 mol
• E) 2.27 mol

---

Definitions:

Variable Costing

A method of accounting that incorporates only the costs that vary with production into the cost of products, leaving out any fixed manufacturing overhead.

Absorption Costing

A fiscal recording method that consolidates every cost involved in manufacturing, which includes the price of direct materials, payments for direct labor, and total overhead costs, whether stable or fluctuating, into the cost allocated to a product.

Variable Costing

A costing method that incluonly direct materials, direct labor, and variable manufacturing overhead in product costs, excluding fixed manufacturing overhead.

Total Fixed Manufacturing Overhead

The sum of all costs related to manufacturing a product that do not change with the level of production, such as salaries of permanent staff and rent.