The aluminum in a 2 200 g sample of impure ammonium aluminum sulfate was precipitated with aqueous ammonia as the hydrous Al 2 O 3 xH 2 O The precipitate was filtered and ignited at 1000C to give anhydrous Al 2 O 3 , which weighed 0 3006 g Express the result of this analysis in terms of (a) NH 4 Al...

Mass of Sample is 1200 g Mass of anhydrous Al 2 O 3 is 02001 g Calculat ...

The aluminum in a 2.200-g sample of impure ammonium aluminum sulfate was precipitated with aqueous ammonia as

Question:

The aluminum in a 2.200-g sample of impure ammonium aluminum sulfate was precipitated with aqueous ammonia as the hydrous Al₂O₃ . xH₂O. The precipitate was filtered and ignited at 1000ºC to give anhydrous Al₂O₃, which weighed 0.3006 g. Express the result of this analysis in terms of
(a) %NH₄Al(SO₄)₂.
(b) %Al₂O₃.
(c) %Al.