Question

See page 302 19 Question (1 point) *Native," or elemental copper can be found in nature, but most copper is mined as oxide or sulfide minerals. Chalcopyrite (CuFeS2) is one copper mineral that can be converted to elemental copper in a series of chemical steps. Reacting chalcopyrite with oxygen at high temperature produces a mixture 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 and the Cu S is burned in air to produce Cu and SO2 20uFes, +30, 2018 +2Fc+250, 2Fc0210, 2FeSio, 2018 - Cus+ Cu,S+S+20,- 2Cu-250,

Answer 1

- Anguver : 2 cupes, +3022 cus + 2 Peo+ 2502 ♡ 2 Reo + zsigg 2 resica ♡ zaus - Cursts A CURS +202 zout 502 I mars of 100 bemies = 3.0oog x 100 = 300.0og. Now moreg of pennies = man = 300.00g = 4.72 mol moonmar 63.5 gmor from above equation ; it is clear that 2 mel of cufer givega 2 mole of cu pennies : moles of cuper requied - 4.72 mel mass of cupen requied - male x molar mass = 4.72 mol x 163.549 mely + 867.129 (answe / Per reaction greld i we know that yield - Calculated X 100 y. Theoretical feer reacton » ; we can deduce theat meleg of cas = mole of ce pennies - 4.72 men ( Theoretical) → 74.00 = Calculated xloor, 4.72 mel u calculated = 3.4928 me) . mars of cuper needed malex melay mars = 3.4928 mal x 183 Sigma/ = 641g (answer)

for reacton meleg of G cus = meleg of ca penues ore (1,2 medan rate) 2 100 4.72 me) x 78 2 Too 1.8408 mel = per reactor metes of ③ cus= 2x meleg at curs x 79 Toő - 2x1.8408 me x 74 loo 2.72 mes - for reacton moles of cares a male of cusxre = 2.72 mel x 74 100 = 2.016 mel mars of cupes = males & molar mars - 2.016 mol x 183. Signal = 370.0 g lansuar /