The Combustion of Ammonia in the Presence of Excess Oxygen

question 39

Multiple Choice

The combustion of ammonia in the presence of excess oxygen yields NO₂ and H₂O: 4 NH₃ (g) + 7 O₂ (g) → 4 NO₂ (g) + 6 H₂O (g)
The combustion of 57.6 g of ammonia consumes __________ g of oxygen.

• A)27.0
• B)28.8
• C)54.1
• D)189
• E)94.6

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Definitions:

Bait-and-Switch

A deceptive marketing strategy where a seller advertises a product at a low price to attract customers, then persuades them to buy a more expensive item.

Cooling-Off Rule

A regulation that allows consumers a set period of time after a purchase to cancel a transaction, usually employed in sales made at home or locations other than the seller's place of business.

Consumer Product Parties

Social gatherings aimed at the demonstration, promotion, and sale of products to consumers in a private home setting.

Cancellation Form

Under the Federal Trade Commission’s Cooling-Off Rule, a document that can be filled out to terminate an order for consumer goods or services made at the buyer’s home for consumer goods or services valued at $25 or more.