1. Treatment of a 0.2500-gram sample of impure potassium chloride with an excess of AgNO3resulted in the...
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Question:
1. Treatment of a 0.2500-gram sample of impure potassium chloride with an excess of AgNO3resulted in the formation of 0.2912 g of AgCl. Calculate the percentage of KCl in the sample.
2. The aluminum in a 0.910-gram sample of impure ammonium aluminum sulfate was precipitated with aqueous ammonia as the hydrous Al2O3• H2O. The precipitate was filtered and ignited at 1000C to give anhydrous Al2O3 which weighs 0.2001 gram. Express the result of this analysis in terms of
a. % NH4Al(SO4)2
b. % Al2O3
c. % Al
Related Book For
Fundamentals of Analytical Chemistry
ISBN: 978-0495558286
9th edition
Authors: Douglas A. Skoog,Donald M. West, F. James Holler, Stanley R. Crouch
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