Two chemicals A and B are combined to form a chemical C. The rate of the reaction is proportional to the product of the instantaneous amountsof A and B not converted to chemical C. Initially there are 54 grams of A and 59 grams of B, and for each gram of B, 0.6 grams of A is used. It has beenobserved that 28.25 grams of C is formed in 10 minutes. How much is formed in 20 minutes? What is the limiting amount of C after a long time?grams of C are formed in 20 minutesgrams is the limiting amount of C after a long time

Formula of integration ∫1xdx=lnx+C∫xndx=xn+1n+1+C

Answered: Two chemicals A and B are combined to…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

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Substance A decomposes at a rate proportional to the amount of A present. It is found that 10 lb of A will reduce to 5 lb in 4.1 hr. After how long will there be only 1 lb left? There will be 1 lb left after hr. (Do not round until the final answer. Then round to the nearest whole number as needed.)
A radioactive element is known to decay at a rate proportional to its present mass. Initially, there is 0.0675 grams of the element. Three hours later, the remaining mass is 85% of its original mass. a. Compute the mass(in milligrams) of the element after 3.5 hours. Determine the time at which the element has decayed to one half of its initial mass.
5. How many 50 lb. bags of 'Applaud' perennial ryegrass are needed to overseed a soccer complex that has 2.5 acres of turf at a rate of 20 Ibs, of PLS / M? The 'Applaud' seed label indicates 95% germination and 92% purity. 6. If you had $3,000 in your budget for purchasing seed, what would the price per bag need to be for you to afford to seed 'Applaud' at the above rate?
Two chemicals A and B are combined to form a chemical C. The rate of the reaction is proportional to the product of the instantaneous amounts of A and B not converted to chemical C. Initially there are 71 grams of A and 56 grams of B, and for each gram of B, 1.1 grams of A is used. It has been observed that 31.75 grams of C is formed in 15 minutes. How much is formed in 40 minutes? What is the limiting amount of C after a long time? grams of C are formed in 40 minutes grams is the limiting amount of C after a long time
Suppose that k = 0,2hr−1 and that the smallest effective concentration is 0.04mg/ml. A single dose that produces a concentration of 0,1mg/ml is administered. Approximately how many hours will the drug remain effective?
4. Newton's Law of cooling states that the rate at which a body changes temperature is proportional to the difference between its temperature and that of the surrounding medium. If a body is in air temperature 35° and the body cools from 120° to 60° in 40 minutes, find the body temperature after 100 minutes. 5. There are 100 gal of brine in a tank and the brine contains 70 Ibs of dissolved salt. fresh watr runs into the tank at the rate of 3 gal/min, and the mixture kept uniform by stirring, runs out at the same rate. How many pounds of salt are there in the tank at the end of 1 hr?
Two chemicals A and B are combined to form a chemical C. The rate of the reaction is proportional to the product of the instantaneous amounts of A and B not converted to chemical C. Initially there are 48 grams of A and 20 grams of B, and for each gram of B, 0.5 grams of A is used. It has been observed that 17 grams of C is formed in 5 minutes. How much is formed in 40 minutes? What is the limiting amount of C after a long time ? grams of C are formed in 40 minutes grams is the limiting amount of C after a long time
Example 1: A large tank holds 350 gallons of brine solution with 38 lbs. of salt. A concentration of 2 lbs./gal is pumped in at a rate of 4 gal/min. The concentration leaving the tank is pumped out at a rate of 3 gal/min. How much salt is in the tank after 15 min?
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A bacteria culture is known to grow at a rate proportional to the amount present. After one hour, 1000 bacteria are observed in the culture; and after four hours, the population increased by 150%. Find an expression for the number of bacteria present in the culture at any time t. Select the correct response: 1000 e0.366t /2.5 P P = Poekt 1000 e0.305t V2.5 P = none of these P = 400V6.25e0.333 ln 2.5t P = 694e0.366t
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An electric transformer is designed to handle 4.3 megavolts, and can handle a 20% overage Starting with the first step on top, order the steps which calculate the largest voltage the transformer can handle without damage. add 4.3 megavolts convert 20% to .20 multiply by 4.3 megavolts

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