Roasting chalcocite, Cu2S, in the presence of powdered carbon extracts copper metal from this sulfide ore.?

Roasting chalcocite, Cu2S, in the presence of powdered carbon extracts copper metal from this sulfide ore. The balanced reaction is:


2 Cu2S (s) + 3 O2 (g) + 2 C (s) -%26gt; 2 SO2 (g) + 4 Cu (s) + 2 CO (g).


The SO2 formed in metal extraction contributes to acid rain. How many kilograms of Copper metal is produced for every kilogram of SO2 that forms?Roasting chalcocite, Cu2S, in the presence of powdered carbon extracts copper metal from this sulfide ore.?
easy


moles of SO2= 15.63 moles (1000g divide by 64)


For every 2 moles of SO2 produced, 4 moles of Cu is also produced. So....


15.63x2=31.24 moles of Cu is produced.





Then....





mass=moles x molar mass





So...





31.24 x 63.5 = 1983.74g of copper are produced for every kg of SO2





If u want that in kilograms, then divide 1983.74 by 1000





so the answer is 1.98kg copper is produced for every kg of sulfur dioxide formed





hope this helps.