The aluminum in a 1.200-g sample of impure ammonium aluminum sulfate was precipitated with aqueous ammonia as the hydrous Al₂O3 xH₂O. The precipitate was filtered and ignited at 1000°C to give anhydrous Al₂O3 (101.96 g/mol) which weighed 0.2001 g. Express the result of this analysis in terms of (a) % NH₂Al(SO4)₂ (237.15 g/mol); (b) % Al₂O3; (c) % Al (26.98 g/mol).

The aluminum in a 1.200-g sample of impure ammonium aluminum sulfate was precipitated with aqueous ammonia as the hydrous Al₂O3 xH₂O. The precipitate was filtered and ignited at 1000°C to give anhydrous Al₂O3 (101.96 g/mol) which weighed 0.2001 g. Express the result of this analysis in terms of (a) % NH₂Al(SO4)₂ (237.15 g/mol); (b) % Al₂O3; (c) % Al (26.98 g/mol).

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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