Solid Ammonium Hydrogen Sulfide Is Introduced into a 2 $\circ$ C,
What Is the Minimum Mass of Ammonium Hydrogen Sulfide

question 107

Multiple Choice

Solid ammonium hydrogen sulfide is introduced into a 2.00-L flask, and the flask is sealed. If this solid decomposes according to the equation below
NH₄HS(s) ⇌ NH₃(g) + H₂S(g) , K_p = 0.108 at 25 ^$\circ$ C,
What is the minimum mass of ammonium hydrogen sulfide that must be present in the flask initially if equilibrium is to be established at 25 ^$\circ$ C

• A) 0.917 g
• B) 1.37 g
• C) 2.74 g
• D) 0.581 g
• E) 0.452 g

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Definitions:

Periodic Inventory System

A periodic inventory system is a method of inventory valuation in which physical inventory counts are performed at specific intervals to determine the cost of goods sold and ending inventory.

Ending Inventory

The total value of a company's inventory available at the end of an accounting period, instrumental in calculating the cost of goods sold.

Purchased Units

Units of goods or services acquired through purchase, often used to refer to inventory items bought for resale in business operations.

Perpetual Moving Average

A method in inventory management where the average cost of inventory is recalculated after each acquisition or sale, ensuring up-to-date and accurate inventory valuations.