WebA tank initially contains 50 gal of pure water. A salt solution containing 2 pounds of salt per gallon of water is poured into the tank at a rate of 3 gal/min. The mixture is stirred and is drained out of the tank at a rate of 3 gal/min. The mixture is stirred and is drained out of the tank at the same rate. (a) Find the initial-value problem ... Web2 Jan 2010 · Approximately 7.231 pounds The bulk density of table salt is 1.154 g/cm3. (http://en.wikipedia.org/wiki/Salt) One gallon is approximately 3785 cubic centimeters. …
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Web27 Feb 2024 · A very large tank initially contains 15 gallons of saltwater containing 6 pounds of salt. Saltwater containing 1 pound of salt per gallon is pumped in to the top of the tank a rate of 2 gallons per minute while a well mixed solution leaves the bottom of the tank at a rate of 1 gallon per minute. What does the solution to the differential ... WebBrine, containing 2 pounds per gallon of salt, flows into the tank at the rate of 2 gallons per minute, and the mixture kept uniform by stirring, runs out at the rate of 1 gallon per minute. Find (a) how long before the quantity of salt in the tank is 100 pounds, and (b) the amount of salt present when the tank contains 100 gallons of brine. reddit epcot
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Web20 Mar 2024 · It is equal to 1/7,000th of a pound. One grain of hardness is defined as one grain of calcium carbonate per gallon of water or (454 gm/lb x 1,000 mg/gm/7,000 grains/lb = ) 64.86 mg of calcium carbonate per gallon of water. 64.86 mg of CaCO 3 contains 25.92 mg of calcium, which is equal to (25.92/20 =) 1.29 meq of Ca. If we are regenerating with ... Web6 Jan 2024 · A 200 gallon tank initially contains 100 gallons of water with 20 pounds of salt. A salt solution with 1 / 4 pound of salt per gallon is added to the tank at 4 gal/min, and the … Web22 Nov 2024 · Exercises; It's pretty easy to calculate how many pounds of chlorine are needed to provide a certain dosage if we are using 100% gas chlorine. Most operators in the water industry have put to memory the “Pound Formula” by multiplying the flow or volume of water in MG or MGD by 8.34 pounds per gallon and then by the dosage in ppm, the … reddit entitled people