Coke is an impure form of carbon that is often used in the in-dustrial production of metals from their oxides. if a sample of co ke is 95% carbon by mass, determine the mass of coke needed to react completely with 1.0 ton of copper(ii) oxide.2cuo1s21c1s2h2cu1s21co21g2
1 answer:
The reaction equation is: <span>2CuO(s) + C(s) </span>→ <span>2Cu(s) + CO</span>₂<span>(g) First, we determine the number of grams present in one ton of copper oxide. This is: 1 ton = 9.09 x 10</span>⁵ g We convert this into moles by dividing by the molecular mass of copper oxide, which is: 9.09 x 10⁵ / 79.5 = 11,434 moles Each mole of carbon reduces two moles of copper oxide, so the moles of carbon required are: 11,434 / 2 = 5,717 moles of Carbon required The mass of carbon is then: 5,717 x 12 = 68,604 grams The mass of coke is: 68,604 / 0.95 = 72,214 g The mass of coke required is 7.22 x 10⁴ grams
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