A pond initially contains 1M gal of water and an unknown amount of an undesirable chemical. Water containing 0.01 gram of thischemical per gallon flows into the pond at a rate of 300 gal/hr. The mixture flows out at the same rate, so the amount of water in thepond remains constant. Assume that the chemical is uniformly distributed throughout the pond. How many days elapsed when theamount of chemical in the pond became 2,300 grams from an amount of 100 grams?40.2 daysO 34.9 daysO 29.6 days38.7 days

Given that the pond initially contains 106 gal of water. Water containing 0.01g of this chemical per…

Answered: A pond initially contains 1M gal of…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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The half-life of Palladium-100 is 4 days. After 24 days a sample of Palladium-100 has been reduced to a mass of 6 mg.What was the initial mass (in mg) of the sample? What is the mass 5 weeks after the start?
A tank contains 1000 liters (L) of a solution consisting of 144 kg of salt dissolved in water. Pure water is pumped into the tank at the rate of 11 L/s, and the mixture-kept uniform by stirring-is pumped out at the same rate. How long will it be until only 8 kg of salt remains in the tank? It will take about www seconds. (Round to the nearest second as needed.)
A tank contains 1000 liters (L) of a solution consisting of 154 kg of salt dissolved in water . Pure water is pumped into the tank at the rate of 3 L/s , and the mixture - kept uniform by stirring - is pumped out at the same rate . How long will it be until only 14 kg of salt remains in the tank ? It will take about _____ seconds.
A tank contains 2000 liters (L) of a solution consisting of 120 kg of salt dissolved in water. Pure water is pumped into the tank at the rate of 4 L/s, and the mixture-kept uniform by stirring-is pumped out at the same rate. How long will it be until only 12 kg of salt remains in the tank? It will take about seconds. (Round to the nearest second as needed.)
A tank contains 100 liters of brine, with 50 kg total dissolved salt. Saltwater, with a concentration of 0.5 kg per liter, is allowed to run into the tank at the rate of 3 liters a minute. Brine run out of the tank at the rate of 2 liters a minute. The instantaneous concentration in the tank is kept uniform by stirring. How much salt is in the tank at the end of one hour?
the nurse is caring for a client who is 39 weeks gestation and has a prescription for an intravenous infusion of oxytocin 1mu/min for induction of labor. The nurse has 10 units of oxytocin in 1000mL of lactated ringers solution available. How many mL/hr should the nurse set the infusion pump to administer
4. A 100 m³ room contains 5% of carbon monoxide. Clean air is pumped into the room at the rate of 0.5 m³/min and the well-mixed air escapes lo from the room at the same rate. How long does it take to reduce the carbon monoxide level to 0.01%?
In the tank of 100 liters of brine containing 55kg totally dissolved salt. Pure water is allowed to run into the tank at the rate of 3 liters per minute. Brine runs out of the tank at rate of 2 liters minute. The instantaneous concentration in the tank is kept uniform by stirring. How much salt is in the tank at the end of 1 hour?
A tank contains 5000 liters (L) of a solution consisting of 80 kg of salt dissolved in water . Pure water is pumped into the tank at the rate of 4 L/s , and the mixture - kept uniform by stirring - is pumped out at the same rate . How long will it be until only 8 kg of salt remains in the tank ? It will take about _____ seconds.
A hospital worker combined 2 fluidounces of a povidone-iodine cleaner, 7.5% w/v, with 4 fluidounces of a povidone-iodine topical solution, 10 % w/v. Calculate the resulting strength of the povidone-iodine mixture.
2. A.tank initially contains 100 gal of a solution that holds 25 lb of a chemical. Water runs into the tank at the rate of 3 gal/min and the solution runs out at the same rate. How much of the chemical remains in the tank after of the chemical in to reduce the amount 15 min? How long does it take the tank to 1 lb?
The half-life of Palladium-100 is 4 days. After 20 days a sample of Palladium-100 has been reduced to a mass of 4 mg. What was the initial mass (in mg) of the sample? What is the mass 6 weeks after the start?

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