Chalcopyrite (cufes2) is an abundant copper mineral that can be converted into elemental copper through the four step process below.
a) calculate the mass of cu in g from 5.40 kg cufes2.
i got 1.87e3g of cu.
b)calculate the mass of cufes2 needed in g to produce 150.0 g cu if the yield for the conversion process is 82%.

the answer would be a

the dependant variable is spilled water

the independent is the heat

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.