* 00 3. Alum [KAI(SO4)2XH20] is used in food preparation, dye fixation, and water purification. To prepare alum, aluminum is reacted with potassium hydroxide and the product with sulfuric acid. Upon cooling, alum crystallizes from the solution. (a) A 0.6809-g sample of alum is heated to drive off the waters of hydration, and the resulting KAI(SO 2 weighs 0.3706 g. Determine the value of x and the complete formula of alum. SI Value of x: Complete Formula: (b) When 0.7557 g of aluminum is used, 8.460 g of alum forms. What is the percent yield? % yield tiy #3 4. 5. 7. n O

* 00 3. Alum [KAI(SO4)2XH20] is used in food preparation, dye fixation, and water purification. To prepare alum, aluminum is reacted with potassium hydroxide and the product with sulfuric acid. Upon cooling, alum crystallizes from the solution. (a) A 0.6809-g sample of alum is heated to drive off the waters of hydration, and the resulting KAI(SO 2 weighs 0.3706 g. Determine the value of x and the complete formula of alum. SI Value of x: Complete Formula: (b) When 0.7557 g of aluminum is used, 8.460 g of alum forms. What is the percent yield? % yield tiy #3 4. 5. 7. n O

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter4: Stoichiometry

Section: Chapter Questions

Problem 4.87PAE

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Many cereals are made with high moisture content so that the cereal can be formed into various shapes before it is dried. A cereal product containing 58% H2O by mass is produced at the rate of 1000. kg/h. What mass of water must be evaporated per hour if the final product contains only 20.% water?
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