Aluminum sulfate (Al2(SO4)3) is an iron-based coagulant that is used during water and wastewater treatment to enhance removal of solids. You may assume that when ferric chloride is added to water the following reaction occurs: Al2(SO4)2 AI3 +3 SO,2
a. How much aluminum sulfate is required (in grams) to prepare 500 mL of 3,000 mg/L Al2(SO4)3 solution?
b. How much aluminum sulfate is required (in grams) to prepare 500 mL of 3,000 mg/L Al2(SO4)3 solution if the aluminum sulfate chemical stock is 73% pure?
c. What is the aluminum (Al) concentration (in mg/L) in the solution? d. What is the sulfate (SO4) concentration (in mg/L) in the solution?

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