A Method for Producing Pure Copper Metal Involves the Reaction

question 72

Multiple Choice

A method for producing pure copper metal involves the reaction of copper(I) sulfide with oxygen gas to give copper metal and sulfur dioxide. Suppose the yield of this reaction is 87%. What mass of a copper ore consisting of 46% copper(I) sulfide must be mined in order to produce 1.0 *10³ kg (1.0 metric ton) of copper metal

• A) 1.3 * 10³ kg
• B) 1.4 * 10³ kg
• C) 1.5 * 10³ kg
• D) 3.2 * 10³ kg
• E) 8.0 * 10³ kg

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