Phosphorus Pentachloride, PCl₅, a White Solid That Has a Pungent

question 28

Multiple Choice

Phosphorus pentachloride, PCl₅, a white solid that has a pungent, unpleasant odor, is used as a catalyst for certain organic reactions. Calculate the number of moles in 38.7 g of PCl₅.

• A)5.38 mol
• B)3.55 mol
• C)0.583 mol
• D)0.282 mol
• E)0.186 mol

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Definitions:

Gross Profit

The difference between the revenue generated from selling goods or services and the cost of goods sold, excluding indirect expenses like administration costs.

Average Cost Formula

A method used in accounting to calculate the cost of goods sold and ending inventory through dividing the total cost of goods available for sale by the total units available for sale.

FIFO

"First In, First Out," an inventory valuation method where goods first bought are the first ones sold, assuming their cost flows in the order incurred.

Gross Profit

The difference between sales revenue and cost of goods sold, indicating how effectively a company generates profit from direct expenses.