CALCULATiNG % METAL IN ORE?

Question

i have a final tomorow and one of the things i need to know is:
How pure metals are obtained and calculate % metal in ore.

please explain, and a site or example will help TY

Answer 1

The % metal in the ore is determined by analyzing a sample of the material the amount of metal is then devided by the size of the sample to determine its percent.

Once the ore is mined, the metals must be extracted, usually by chemical or electrolytic reduction. Pyrometallurgy uses high temperatures to convert ore into raw metals, while hydrometallurgy employs aqueous chemistry for the same purpose. The methods used depend on the metal and their contaminants.