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Unformatted text preview: 6) It is known that limestone (CaCO 3 ) dissociates in water: CaCO 3 Ca ++ + CO 3 What is the Molar concentration of Ca + + in a 1.5 M 3 reactor after 3 grams of CaCO 3 have dissolved. Express results in molesCa ++ per liter. 7) A 3 gallon bucket contain a .0003 M/L of Ca++ is mixed with a 6 gallon bucket containing 75 mg/L of Ca ++ . What is the resulting Ca ++ (express as mgCa ++ /L) ? 8) How much salt must be added to a 200 acre flooded field to raise the salinity to 3 ppt. Assume the average depth of the water is 2.5 feet. (express in metric tons) 9) The 4 acre College Lake has an average depth of 4 feet. How many pounds of algal biomass are in the lake if the suspended algal concentration is 40 mg/L. 10) A stream with a 3 CFS flow and a phosphorus concentration of 20 ug/l is polluted with a 4 gpm waste stream with a phosphorus concentration of 15 mg/l. What is the phosphorus concentration in the stream below the waste input? (express in ug/L)....
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This note was uploaded on 05/20/2010 for the course EVEG 3110 taught by Professor Malone during the Spring '10 term at LSU.
 Spring '10
 Malone

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