Alum [KAl(SO₄)₂.xH2O] is used in food preparation, dyefixation, and water purification. To prepare alum, aluminum isreacted with potassium hydroxide and the product with sulfuricacid. Upon cooling, alum crystallizes from the solution.(a) A 0.5404-g sample of alum is heated to drive off the watersof hydration, and the resulting KAl(SO₄)₂weighs 0.2941 g. De-termine the value of xand the complete formula of alum.(b) When 0.7500 g of aluminum is used, 8.500 g of alum forms.What is the percent yield?

Chemistry for Engineering Students
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ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter4: Stoichiometry
Section: Chapter Questions
Problem 4.112PAE: 4.112 A metallurgical firm wishes to dispose of 1300 gallons of waste sulfuric acid whose molarity...
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Alum [KAl(SO₄)₂.xH2O] is used in food preparation, dyefixation, and water purification. To prepare alum, aluminum isreacted with potassium hydroxide and the product with sulfuricacid. Upon cooling, alum crystallizes from the solution.(a) A 0.5404-g sample of alum is heated to drive off the watersof hydration, and the resulting KAl(SO₄)₂weighs 0.2941 g. De-termine the value of xand the complete formula of alum.(b) When 0.7500 g of aluminum is used, 8.500 g of alum forms.What is the percent yield?

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