g. Aluminium in 1.200 g sample of impure ammonium aluminium sulphate was precipitated with aqueous ammonia as the hydrous Al2O3.xH2O. The precipitate was filtered and ignited at 1000 °C to give anhydrous Al2O3 which weighed 0.1798 g. Calculate the percentage of aluminium in the sample (Atomic weight Al= 26.98 g mol-1; Molecular weight Al2O3 = 101.96 g mol-1).
g. Aluminium in 1.200 g sample of impure ammonium aluminium sulphate was precipitated with aqueous ammonia as the hydrous Al2O3.xH2O. The precipitate was filtered and ignited at 1000 °C to give anhydrous Al2O3 which weighed 0.1798 g. Calculate the percentage of aluminium in the sample (Atomic weight Al= 26.98 g mol-1; Molecular weight Al2O3 = 101.96 g mol-1).
General Chemistry - Standalone book (MindTap Course List)
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
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Chapter21: Chemistry Of The Main-group Elements
Section: Chapter Questions
Problem 21.195QP
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g. Aluminium in 1.200 g sample of impure ammonium aluminium sulphate was precipitated with aqueous ammonia as the hydrous Al2O3.xH2O. The precipitate was filtered and ignited at 1000 °C to give anhydrous Al2O3 which weighed 0.1798 g. Calculate the percentage of aluminium in the sample (Atomic weight Al= 26.98 g mol-1; Molecular weight Al2O3 = 101.96 g mol-1).
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