If a linear synthesis has 5 steps starting from 25 mmol of the precursor, what must be the average% yield for each step, if the% total yield is 85%? Show your work.

Q: Suppose a small quantity of radon gas, which has a half-life of 3.8 days, is accidentally released…

A: half life problem

Q: 7. A 170kV 3 phase electric source delivers 200 MVA to a balanced load with pf of 90% lagging. What…

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Q: How long will it take for the population to reach 65286528 fish, according to this model?

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Q: Initially, there are 1 million bacteria present in a Petri dish. After 2 minutes, there are already…

A: given: Initially, there are 1 million bacteria present in a Petri dish.  After 2 minutes, there are…

Q: A small city had a population of 130,000 in 2010. Concerned about rapid​ growth, the residents…

A: Initial population in 2010 (corresponds to t=0) is P0=130,000 Population after t years from 2010 is…

Q: in the early 1970s there were approximately 40,000 trees lining the streets of Newton. Today, that…

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Q: The half-life of substance X is 3.5 years.  How long will it take for a 96.0 mg sample of substance…

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Q: 1. U.S. oil reserves are estimated at 29 billion barrels, and we currently produce about 6 MBPD. How…

A: Given  Oil reserves =29 billion barrels 1 billion = 1000million  Current production= 6 million…

Q: A bacteria population grows by 10% every 3 days. Based on this, if we initially have 2,000…

A: First of all we should know that the growth is exponential so formula will be: Nd = N0ekd where N0…

Q: If half a certain amount of radium decays in 1600 years. What percentage of the original amount will…

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Q: If 14 g of a radioactive substance are present initially and 3 yr later only 7 g remain, how much of…

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Q: In a pest-eradication program, sterilized male flies are released into the general population each…

A: Step1: Given that out of some number of flies introduced daily only 90% of flies will survived…

Q: A sample of tritium-3 decayed to 85% of its original amount after 4 years. How long would it take…

A: Given problem:- A sample of tritium-3 decayed to 85% of its original amount after 4 years. How long…

Q: The half life of a decaying substance is the amount of time it takes for the substance to reduced to…

A:

Q: The half-life of polonium is 139 days, but your sample will not be useful to you after 95% of the…

A: It is given days half-life of polonium is 139 days. By the definition of half life, A139=12A0

Q: There are 5,000 wolves in the park, but their population is expected to decay at a rate of 8% per…

A: Given, initially , wolves in the park = 5000 Decay of population = 8% per year finally , wolves in…

Q: An initial population of 8,000 decays for two years until the population is 500. By what percentage…

A: Given-  An initial population of 8,000 decays for two years until the population is 500. To…

Q: Element X is a radioactive isotope such that every 7o years, its mass decreases by half. Given that…

A: Solution : Given that element X is a radioactive isotope such that every 70 years, its mass…

Q: The half-life of polonium is 139 days, but your sample will not be useful to you after 95% of the…

A:

Q: A population of deer contains 10 000 individuals. During a year, 5000 individuals are born and 4500…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 2.A mold population is growth at 8% every three months. If there is initially 3 cubic centimeters of…

A: Formula : Population Growth: P=Po(1+r)n r= rate of growth Po =initial value P= present Value n= no…

Q: The population of Northern Cascadia is growing at a rate of 20% every 3 years. Assuming that it…

A: Topic: percentage

Q: Element X is a radioactive isotope such that every 70 years, its mass decreases by half. Given that…

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Q: Element X is a radioactive isotope such that every 16 years, its mass decreases by half. Given that…

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Q: Determine the initial amount of radioactive substance if after 22 years, the remaining unconverted…

A: To find the initial amount of radioactive substance decay rate and half-life of the substance…

Q: A small resort is situated on an island that lies exactly 4 miles from PP, the nearest point to the…

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Q: The population of a colony of mosquitoes obeys the law of uninhibited growth. If there are 1000…

A: Given:The initial number of mosquitoes is 1000. That is, P0 = 1000.The numbr of  mosquitoes is 1600…

Q: 6. Determine the initial amount of radioactive substance if after 22 years, the remaining…

A: To find the initial amount of radioactive substance, decay rate and half-life of the substance.

Q: An engine health monitoring system consists of a primary unit and a standby unit. The MTTF of the…

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Q: A bacteria has an initial population of 200. If after 2hrs, its population is 10 times the original…

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Q: Suppose the half-life of a certain radioactive substance is 20 days and that there are5 grams…

A: Given that, The half-life of a certain radioactive substance is 20 days and that there are 5 grams…

Q: The population of one state increases at a rate numerically equal to the cube root of the…

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Q: When air expands adiabatically (without gaining or losing

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Q: An element with mass 820 grams decays by 26.8% per minute. How much of the element is remaining…

A: We have to use exponential decay function to solve the problem

Q: alf-life of carbon-14 is 5600 years. If a piece of charcoal made from the wood of a tree shows only…

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Q: A city with a 2010 population of 98,000 has a growth control policy that limits the increase in…

A: The population and the respective years for different annual growth rates are tabulated below. We…

Q: In a factory there are 100 skilled, 250 semi-skilled and 150 unskilled workers. It has been observed…

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Q: The​ half-life of polonium is 139​ days, but your sample will not be useful to you after 91​%of the…

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Q: Thorium-227 has a half-life of 18.4 days. How many days will a 100mg sample take to decay to 12.5mg?

A: Here, we need to find how many days will a 100mg sample of Thorium-227 take to decay to 12.5mg.

Q: 2) A new bacteria strain called HK-203 has been discovered and will require a culture of at least…

A: Initial amount of bacteria is: x=400 For every interval of 52 minutes bacteria doubles. After 1st…

Q: Thorium -227 has a half life of 18.4 days. How many days will a 100mg sample take to decay to…

A: We know that, N(t)= N(0)*(1/2)t/(t1/2) N(t) = quantity of the substance remaining N(0) = initial…

Q: 1. Suppose a culture of 300 bacteria at BIO Farm is put into Petri dish and the culture doubles…

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Q: The population of some native bees is declining at a rate of 6% per year. If there are 15 300 bees…

A: Given- The rate of declining =6%, intial bees in the hive = 15,300. To Find- The number of bees in…

Q: After some analysis, it has been proposed that the following van der Waals equation of state can be…

A: Given that, The van der Waals equation of state can be used to describe this…

Q: How long will it take a population of bacteria to reach a certain size, given that we know its…

A: How long will it take a population of bacteria to reach a certain size, given that we know its…

Q: Element X is a radioactive isotope such that every 27 years, its mass decreases by half. Given that…

A: Radioactive decay

Q: 6. Determine the initial amount of radioactive substance if after 22 years, the remaining…

A: