How Many Cubic Centimeters of an Ore Containing Only 0

question 63

Multiple Choice

How many cubic centimeters of an ore containing only 0.22% gold (by mass) must be processed to obtain $100.00 worth of gold The density of the ore is 8.0 g/cm³ and the price of gold is $818 per troy ounce. (14.6 troy oz = 1.0 ordinary pound, called an avoirdupois pound; 1 lb = 454 g)

• A) 0.48 cm³
• B) 220 cm³
• C) 1.4 * 10³ cm³
• D) 1.7 * 10³ cm³
• E) 1.8 * 10⁴ cm³

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Definitions:

Elaborative Rehearsal

A memory technique that involves thinking about the meaning of the term to be remembered, as opposed to mere repetition.

Maintenance

The process of preserving something’s condition or functionality through regular checkups, repairs, and necessary updates.

Massed

Pertaining to a practice schedule where tasks are performed in long, unbroken intervals without rest, contrasting with spaced practice.

Mnemonic

A device or technique used to aid memory, often through association of familiar concepts or a sequence of ideas.