這句英文是什麼意思？

To purify 200cm^3 of water contaminated with dissolved copper(II) sulphate.

的意思是

提純 200cm^3 硫酸銅(II)溶液中的水。


希望幫到您!!!

佢即係叫你去extract 走 dissolved copper(II) sulphate from the 200cm3
mixture

第一係先將佢變crystalline form , 然後就 by filtration 將dissolved copper(II) sulphate crystal filter 走

that means there are 200cm3 of water but it is contaminated with copper(II)sulphate , and it ask you to purify this 200cm3 of water.