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Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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estion tive," or elemental copper can be found in nature, but most copper is mined as oxide or sulfide minerals. Chalcopyrite (CuFeS2) is one copper eral that can be converted to elemental copper in a series of chemical steps. Reacting chalcopyrite with oxygen at high temperature produces a ture of copper sulfide and iron oxide. The iron oxide is separated from CuS by reaction with sand (SIO2). CuS is converted to Cu2S in the process the Cu2S is burned in air to produce Cu and SO2: FeS,+30, → 2CUS + 2F¢O +2SO, eO+ 2SIO, → 21 eSiO, Cus Cu,S+S u,S+S+ 20, 2Cu + 2SO, part 1: An average copper penny minted in the 1960's contained about 3.000 g copper. how much Calcopyrite had to be mined to produce 100 pennies? of part 2: How much calcopyrite had to be mined to produce 100 pennies if reaction 1 (2CuFes2 +302 --> 2CuS + 2FEO + 2SO2) had a percent yield of 82.00% and all other reaction steps had a yield of 100%? Part 3: How much calcopyrite had to be mined to produce 100 pennies if each reactions 1, 3 (2CUS --> Cu2S + S) and 4 (Cu2S + S + 202 --> 2Cu + 2SO2) proceeded in 82.00% yield?
Transcribed Image Text:estion tive," or elemental copper can be found in nature, but most copper is mined as oxide or sulfide minerals. Chalcopyrite (CuFeS2) is one copper eral that can be converted to elemental copper in a series of chemical steps. Reacting chalcopyrite with oxygen at high temperature produces a ture of copper sulfide and iron oxide. The iron oxide is separated from CuS by reaction with sand (SIO2). CuS is converted to Cu2S in the process the Cu2S is burned in air to produce Cu and SO2: FeS,+30, → 2CUS + 2F¢O +2SO, eO+ 2SIO, → 21 eSiO, Cus Cu,S+S u,S+S+ 20, 2Cu + 2SO, part 1: An average copper penny minted in the 1960's contained about 3.000 g copper. how much Calcopyrite had to be mined to produce 100 pennies? of part 2: How much calcopyrite had to be mined to produce 100 pennies if reaction 1 (2CuFes2 +302 --> 2CuS + 2FEO + 2SO2) had a percent yield of 82.00% and all other reaction steps had a yield of 100%? Part 3: How much calcopyrite had to be mined to produce 100 pennies if each reactions 1, 3 (2CUS --> Cu2S + S) and 4 (Cu2S + S + 202 --> 2Cu + 2SO2) proceeded in 82.00% yield?
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