The Hall Process for the Production of Aluminum Involves the Reaction

question 67

Multiple Choice

The Hall process for the production of aluminum involves the reaction of aluminum oxide with elemental carbon to give aluminum metal and carbon monoxide.If the percent yield of this reaction is 82% and aluminum ore is 71% by mass aluminum oxide, what mass of aluminum ore must be mined in order to produce 1.0 × 10³ kg (1 metric ton) of aluminum metal by the Hall process?

• A)1.1 × 10³ kg
• B)1.6 × 10³ kg
• C)1.8 × 10³ kg
• D)2.2 × 10³ kg
• E)3.3 × 10³ kg

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Definitions:

Depreciation

The process of allocating the cost of a tangible asset over its useful life, reflecting wear and tear, and obsolescence.

Accumulated Depreciation

The total amount of depreciation expense that has been recorded against a fixed asset since it was acquired, reflecting its use and wear over time.

Investing Activity

A category in financial statements that represents cash flows related to the purchase or sale of long-term assets or investments.

Statement Of Cash Flows

A financial statement that highlights the major activities that impact cash flows and, hence, affect the overall cash balance.