QUESTION 4 The minerals of a 50.0 kg ore sample from a South African mine in Northwest were dissolved by acid leachin
Posted: Mon Jul 11, 2022 1:16 pm
QUESTION 4The minerals of a 50.0 kg ore sample from a South African mine in Northwest were dissolved by acid leaching to make up a solution whose volume was 25.0 dm3. When this solution was analysed it was found to contain 0.200 mol.dm−3 of Cd2+(aq) ions and 0.150 mol.dm−3 of Ni2+(aq) ions. The solution was then subjected to electrolysis at 25.0oC. Calculate the mass percentage purity of the metal that plated last.