the major commercial aluminium ore is bauxite,AlO3.H2O(s).What is its molar mass?The analysis of a representive sample of bauxite shows it contains 70% by mass of Al2O3..What is the maximum mass of aluminium metal that could be obtained from 200kg of bauxite by the HAll electrolytic proces
molar mass Al2O3.H2O = 2*Al + 3*O + 2*H + 1*O = ?
200 g bauxite x 0.70 = 140 g Al2O3
g Al from 140 g Al2O3 = 140 x (2*atomic mass Al/molar mass Al2O3) = ?
NOTE: The first sentence says bauxite is Al2O3.H2O ( I corrected the typo); however, the 70% figures refers only to Al2O3.
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