Bornite (cu3fes3) is a copper ore used in the production of copper. when heated, the following reaction occurs. 2 cu3fes3(s) + 7 o2(g) 6 cu(s) + 2 feo(s) + 6 so2(g) if 3.24 metric tons of bornite is reacted with excess o2 and the process has an 78.8% yield of copper, what mass of copper is produced?

Bornite has a molar mass of . of bornite would thus contain formula units of this substance. Each two formula unit of bornite combusts to produce six formula units of copper metal as seen in the equation; of bornite would therefore produce of copper, which corresponds to a theoretical yield of .

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Thus the actual yield of copper:

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

the answers would be

the first one and the second one