The half life of a first order reaction is given as 15.6 days. How long will it take to decompose to 10% ?

Q: Suppose that the half-life of sterouds taken by an athlete is 42 days.If the steroids biodcarade by…

A: Given :-  half life of steroids = 42 days  reaction is first order  To calculate :-  time taken for…

Q: A reaction is second order and found to be 75% complete after 20 seconds. Find the half-life of the…

A: Formula for second order kinetics is :- 1/(A) = 1/ (A0) + kt  Where A0 initial  concentration of…

Q: If the first-order reaction is found to be 48.39 min. what mass will remain after 55 minutes given a…

A: Sine the relationship between the concentration and time for a first order reaction is given by  ln{…

Q: What is the half-life in minutes of a compound if 75.0 percent of a given sample decomposes in 35.0…

A: Given, Assuming first order kinetics. 75.0 percent of a given sample decomposes in 35.0 minutes Let,…

Q: Assuming first-order kinetics, if it takes 1200 hours to reduce a substance to 12.5% of its initial…

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Q: It was found that 60.4% of hydrogen peroxide degraded at 300 K in 75 minutes. Given that the…

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Q: If the half-life period of a first order reaction in A is 2 minutes, how long will it take [A] to…

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Q: A certain first-order reaction A ->B is 25% complete in 42 min at 25°C. What is the half-life of the…

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Q: The decompostion of a compound with a half-life of 32 minutes at 25 oC is a first order process. If…

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Q: Niobium-89 decays through beta decay to produce yttrium-89 in a first order process with a half-life…

A: Half life time is a time to consume half of initial concentration of any reactant. Denoted by t1/2.…

Q: a first order reaction has a half-life of 10 minutes. The value of the rate constant, k, for this…

A: Given 4: Half-life for 1st order reaction=10 min

Q: A first-order reaction is 45% complete at the end of 35 minutes.What is the length of the half-life…

A: Given that, the reaction is 45% complete in 35 minutes.  For a first order reaction,    ln [ A ]  =…

Q: A reaction is completed by 50% in 30.0 minutes. How many minutes is 85% complete when this reaction…

A: For calculating the required time, we will use two Equations for each part. 1st one is the…

Q: It has been found that DDT in the soil decomposes by a first-order reaction with a half-life of 12.0…

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Q: A first-order reaction (A 25 minutes. If the initial concentration of A is 0.400 B) has a half-life…

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Q: After 55.0 min, 11.0% of a compound has decomposed. What is the half‑life of this reaction assuming…

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Q: 7. If the half-life for the decomposition of a drug is 6 hours, how long will it take for 125 mg of…

A: Half life = 6 hours Initial quantity = 125 mg Quantity left after time t = 70% (125) mg

Q: Suppose that the half-life of steroids taken by an athlete is 42 days. If the steroids biodegrade by…

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Q: The rate constant for the breakdown of an isotope of iodine is first order and has a half-life of…

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Q: A substance undergoes first-order decomposition. After 28 min at 500°C, only 12.5% of the original…

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Q: Determine the (a) order of the reaction with respect to each reactant, (b) the overall order of…

A: Rate law gives the relation between rate of the reaction and concentration of the reactants.

Q: What is the half-life in minutes of a compound if 75.0 percent of a given sample decomposes in 80.0…

A: Step 1: For the given condition the kinetics is considered to be first order. A first order kinetics…

Q: A substance undergoes first-order decomposition. After 36 min at 500°C, only 12.5% of the original…

A: When a substance remains only 50℅ in a period, that period is known as the half-life of that…

Q: What is the half-life in minutes of a compound if 75.0 percent of a given sample decomposes in 25.0…

A: The relationship between concentration and time for first-order reaction is given by

Q: Determine the half-life of the reaction in seconds if the initial concentration of drug A is 0.208 M…

A: Given :- initial concentration [A]o = 0.208 M                Rate constant (K) = 0.056 M/s  To be…

Q: Given that a reaction is a second order process, determine the time in minutes for 3.323 M of a…

A: Given:Reaction is second order reaction.Let the reaction be: 2A→ P.Initial concentration [A0] =…

Q: The first-order decomposition, A → products, has a rate constant of 0.0 Starting with [A], = 0.7 M,…

A: Given that rate constant = 0.02 s-1 [A0] = 0.7 M  [At] = 0.1 M

Q: A certain first-order reaction A → B is 25% complete in 42 min at 25°C. What is the half-life of the…

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Q: A first order reaction initially contains 1.00 × 10²⁰ molecules. If the reaction has a half-life of…

A: Since we know that the relationship between the amount of reactant i.e [A] and time for a first…

Q: A first order decomposition reaction has a half-life of 60.1 yr. What percentage of the original…

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Q: A first order reaction initially contains 2.65 × 10²⁰ molecules. If the reaction has a half-life of…

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Q: The half-life of a reaction is 2.50 minutes when the initial concentration of A is 0.150 M. How long…

A: Applying concept of first order reaction.

Q: What is the order of the reaction if its half-life is 15 minutes. Take note that the concentration…

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Q: After 74.0 min, 24.0% of a compound has decomposed. What is the half-life of this reaction assuming…

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Q: A first order reaction initially contains 4.65 × 10²⁰ molecules. If the reaction has a half-life of…

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Q: Give a mathematical expression for the half-life of a first order reaction and of a second order…

A: Half life period of a reaction is the time in which half of concentration of Reactants consumed. It…

Q: It has been found that DDT in the soil decomposes by a first-order reaction with a half-life of 12.0…

A: To solve this problem first we have to calculate the rate constant by using half life time  K =…

Q: It has been found that DDT in the soil decomposes by a first-order reaction with a half-life of 12.0…

A: DDT decomposes following the first-order kinetics. Half-life =12.0 yr Initial concentration, [A]o…

Q: Calculate the rate constant (in units M/min) for a zero order reaction with a half life of 13.7…

A: Given :-  t½ = 13.7 min  Initial concentration [A]o = 0.496 M   To be calculated :-  Rate constant…

Q: A first order reaction initially contains 4.10 × 10²⁰ molecules. If the reaction has a half-life of…

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Q: A compound decomposes by a first order process. If 25.0 % of the compound decomposes in 60.0…

A: Answer: Half life of the compound is 145 min.

Q: A substance undergoes first-order decomposition. After 37 min at 500°C, only 12.5% of the original…

A: The integrated rate equation for first order reaction is  k = 2.303tlog[R]o[R] k = rate constant t =…

Q: After 72.0 min, 15.0% of a compound has decomposed. What is the half-life of this reaction assuming…

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Q: Radioactive decay of unstable atomic nuclei is at first order process. The half-life for the…

A: Given: Amount of C-14 remaining in the wood = 87 % of the initial amount (as the initial amount is…

Q: The reaction rate coefficient for a pollutant following first order reaction is 0.3 per day. If the…

A: Integrated rate law equation for first-order kinetics:          ......(1) where, t is time period, k…

Q: Calculate the rate constant (in units 1/M•min) for a second order reaction with a half life of 70.1…

A: Given :- half life (t1/2) = 70.1 min (2nd order reaction)  Initial concentration [A]0 = 0.556 M  To…

Q: Half-life for a first order reaction 693 s. Calculate the time required for 90% completion of this…

A: When concentration of a reactant decreases to one-half of its initial value then the time required…