30000 tonnes of a copper ore containing 6.5% chalcopyrite was mined. Calculate the theoretical yield of copper that could be extracted from this ore (in tonnes)?
And thus percentage mass of copper in chalcopyrite is:
But, the ore contains ONLY
And thus, the mass of copper is given by............
And of course the rest of the starting mass will either be released to the atmosphere, or end up in a mountainous pile of tailings.