Answer to Question #178432 in General Chemistry for بشرى

Question #178432

. How many grams of aluminum were used to prepare 20.0 g of potassium alum if the percent yield was 81.5%?


1
Expert's answer
2021-04-06T06:07:28-0400

Potassium alumpotash alum, or potassium aluminium sulfate is a chemical compound: the double sulfate of potassium and aluminium, with chemical formula KAl(SO4)2.

Al > KAl(SO4)2

27 -----258

x---------20/0.815

x= 2.568 g.


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