Question

0.6 mol of Cu2S is roasted in excess of oxygen to yield Cu and SO2, according to the reaction: Cu2S + O2 -----> 2Cu + SO2. Calculate the mass of Cu formed

Answer 1

Answer:

Cu2S  + O2 ->  2Cu  + SO2

From the above reaction, 1 mole of Cu2S produces 2 moles of copper.

Then 0.6 moles of Cu2S produces 1.2 moles of copper.

1 mole of copper is 63.55 g

1.2 moles of copper is 76.26 g.

Thus, the mass of copper formed is 76.26 g from 0.6 moles of Cu2S

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