The First Step in the Ostwald Process for Producing Nitric

question 37

Multiple Choice

The first step in the Ostwald process for producing nitric acid is as follows: 4NH₃(g) + 5O₂(g) → 4NO(g) + 6H₂O(g) .
If the reaction of 15.0 g of ammonia with 15.0 g of oxygen gas yields 8.70 g of nitric oxide, what is the percent yield of this reaction?

• A) 29.0%
• B) 32.9%
• C) 49.5%
• D) 61.8%
• E) 77.3%

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Definitions:

Double Chains

Structures consisting of two parallel chains of atoms or molecules bonded together, often found in silicate minerals.

Silicon Tetrahedron

A structural unit in silicate minerals, consisting of a central silicon atom covalently bonded to four oxygen atoms at the corners of a tetrahedron.

Silicate Minerals

Minerals that contain silicon and oxygen, and possibly other elements, constituting the largest family of minerals.

Silicon Tetrahedron

A fundamental building block in silicate minerals, consisting of a silicon atom surrounded by four oxygen atoms in a tetrahedral arrangement.