Assign_1-3_Basic_Conc_Calcs

Assign_1-3_Basic_Conc_Calcs - 5. A 20 m 3 tank containing...

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EVEG 3110 Basic Chemistry Units and Concentrations 1. How many lbs of salt (NaCl) must be added to a 10,000 gallon pond to raise the salinity from 0.5 to 3 ppt? (answer in pounds)
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2. A 1400 cubic foot tank is 75 percent full with water. It contains 3 grams of phosphorus (P). What is the phosphorus concentration. (answer in micrograms per liter)
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3. Sixty five hundred gallons of water with a ammonia (NH 3 ) concentration of 3.1 mg/L is blended with a 430 gallons tank with a NH 3 concentration of 1.0 mg/L. What is the resulting NH 3 concentration in the combined concentration in mg/L? What is the NH 3 molar concentration of the combined tank?
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4. A 300 gallon tank has a salt concentration of 225 mg/L. The sun evaporates 114 gallons. What is the new salt concentration? (answer in mg/L)
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Unformatted text preview: 5. A 20 m 3 tank containing 80 mg/l of bicarbonate ion (HCO 3-) is dosed with a 3 lpm flow containing 200 mg/L of NaHCO 3 for 3 hours. What is the resulting bicarbonate concentration (answer in mg/L). What is the resulting molar concentration of bicarbonate? 6. A lake with a surface area of 56 acres and an average depth of 3.5 feet requires a CuS0 4 of 1 mg/l to control algae. Your copper sulfate source is 87 percent pure. How many ten pound cans do you need to order for the lakes treatment?. 7. A stream flow of 2 m 3 /sec and a salt concentration of 175 mg/l receives a brine waste flow of 300 gpm at a salt concentration of 95 ppt. What is the resulting salt concentration downstream of the waste discharge? (Express results in ppm)...
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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.

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Assign_1-3_Basic_Conc_Calcs - 5. A 20 m 3 tank containing...

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