If a solution containing 14.0 gg of a substance reacts by first-order kinetics, how many grams remain after three half-lives?

Q: How many half-lives are required for the concentration of reactant to decrease to 1.56% of its…

A: Given data ;  Concentration is decreased to 1.56 %. It means that 0.0156 of [A0] is decomposed.…

Q: Which of the following steps in a reaction mechanism determines the order of the reaction? rate…

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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: After 54.0 min, 38.0% of a compound has decomposed. What is the half‑life of this reaction assuming…

A: Rate constant, k can be determined as follows:

Q: 16. For a certain first-order reaction the rate constant is 0.92 s. What percent of reactant remains…

A: The first order reactions are the ones where the rate depends linearly on the concentration of a…

Q: Chlorine dioxide (ClO2) is used as a disinfectant in municipal water-treatment plants. It decomposes…

A: Given, First order rate constant is 0.0714 s-1 The initial concentration is 0.12 M For the first…

Q: 10% of a sample reacts in 45s. If the reaction follows first order kinetics, how long would it take…

A: Answer :- 296 s  The time required for half the sample to react = 296 s…

Q: When a 5.00x10² mg aspirin tablet is taken it decomposes via zeroth order kinetics with a half-life…

A: Given 5X102 mg tablet of aspirin decomposes via zero order with half life of 3.1 hrs We have to…

Q: A certain medication contains 200 mg of active ingredient per tablet. The medication is metabolized…

A: Initial Amount = 200 mg  According to question 150 mg has been metabolised in the body &…

Q: When CA is 0.023 mol/L, the rate of a particular second-order reaction (in A) is 3.42 x 10-3…

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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: How many half-lives are required for the concentration of reactant to decrease to 12.5% of its…

A: Given,

Q: N205(g) decomposes to form NOg) and O2g). The reaction is first order with respect to N205(g) and…

A: Given Decomposition of N2O5 N2O5 (g) --------------> NO (g) + O2 (g) The reaction follows first…

Q: What is a second-order reaction?

A: A second-order reaction has to be given.

Q: Derive the half-life equation for a second-order reaction. What is the half-life for the…

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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: How many half-lives are required for the concentration of reactant to decrease to 3.1% of its…

A: We have to calculate the number of half lives required to decrease concentration to 3.1% of its…

Q: Draw a graph that shows the correct relationship between concentration and time for a reaction that…

A: Concept introduction: Rate of reaction is equal to the change in concentration of product or…

Q: A zero-order reaction has a half-life of 10.0 minutes when the reactant concentration is 0.250 M.…

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Q: What is the halflife of a compound if /5 percent of a given sample of the compound decomposes in 60…

A: Given a compound follows first order kinetics.5 % of the given sample of the compound decomposes in…

Q: What fraction of a reactant has been consumed after 4 half-lives in a first-order reaction?

A: The rate of the reaction is referred to as the change in the molar concentration in a distinct…

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: Does the half-life of a zero-order reaction depend on the initial concentration of the reactant?

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Q: A Zero-order decomposition reaction of a substance took 4 minutes to achieve 30%  decomposition.…

A: Given, A Zero-order decomposition reaction of a substance took 4 minutes to achieve 30%…

Q: Derive the half-life equation for a second-order reaction. What is the half-life for the…

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Q: Chlorine dioxide (ClO2) is used as a disinfectant in municipal water-treatment plants. It decomposes…

A:

Q: Derive the half-life equation for a zero-order reaction. What is the half-life for the decomposition…

A:

Q: A reaction: A ➔ 2B starts out with an initial concentration of A at 1.0M and ends with a…

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Q: How to Determine First-order Reaction?

A: The chemical reactions in which the rate of reaction is straightly proportional to the concentration…

Q: What is the half-life of a compound if 65 percent of a given sample of the compound decomposes in 59…

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Q: A zero-order reaction has a constant rate of 3.10×10−4 M/s. If after 80.0 seconds the concentration…

A: Given :  K = 3.10×10−4 M/s  t = 80 sec  Initial concentration = ao  Concentration after 80 sec = at…

Q: Derive the half-life equation for a second-order reaction. What is the half-life for the…

A: We have to derive the half-life equation for a second-order reaction as follows in step 2:

Q: + 14 NO2(9) → 7 N2(g) ) + 8 CO2(0) . + 12 H20(g) 4 CH3CH3(0) the rate of the reaction in terms of…

A: The rate of a reaction measured for an infinitesimally small interval is regarded the instantaneous…

Q: (a) What is activation energy? What role does activation energy play in chemical kinetics? (b) What…

A: there are certain criteria for any chemical reaction to occur and activation energy is one of them…

Q: Give the half-life equation for a reactant with the following characteristics: a. Zero Order:…

A: Defination: the time required to consume half of the initial concentration of reactant is called…

Q: Age of a tree/fossils can be measured by looking at the remaining Carbon-14 in a sample. C-14 has a…

A: Half life of C-14 = 5720 years As the reaction follow first order kinetics., Rate constant, K =…

Q: How might you experimentally distinguish between a first-order and second-order kinetic reaction?

A: reaction order must be determined experimentally. follow the reaction by making measurement of the…

Q: What is the half-life for a first order reaction if the initial concentration of reactant is 1.25M…

A: Given that it is a first-order reaction. Initial concentration [Co]= 1.25M Final concentration[C] =…

Q: A first-order reaction has a half-life of 1.34 x 103 hours. If the initial concentration of reactant…

A: Half life of the reaction is the time at which half of the reactant get reduced.

Q: half-life

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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: It took 774.7 s for 42.04% of a substance to react according to first-order kinetics. What is the…

A: K = 2.303/t log (a/(a-x)) where K = first order rate constant = ? s-1 t = time taken = 774.7 s a =…

Q: A first order reaction has a half life of 33 s. How long will it take for the reactant concentration…

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Q: Suppose that the half-life of a stimulant shot into a race horse is 28 days. Assuming the stimulant…

A: The time required for half of the reaction to break up into the original concentration is known as…

Q: If the initial reactant concentration of a first order reaction is 1.60 M, what would be the…

A: Given :-  Reaction is first order  Initial concentration of reactant = 1.60 M  Half life = 9 s  To…

Q: How many half-lives are required for the concentration of reactant to decrease to 1.56% of its…

A: final concentration is 1.56 %  So, initial concentration will be 100 %

Q: The half-life of a first-order reaction is 13 min. If the initial concentration of reactant is 0.085…

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Q: 6. Define half-life. Write the equation relating the half-life of a first-order reaction to the rate…

A: Half life is the time required by a quantity or a substance to reduce to half of its initial value.…

Q: The rate constant for a second order reaction is 3.33×10² L mol's. The initial concentration of the…

A: Given data:  Rate constant K = 3.33×10-2 L mol-1s-1 Initial concentration A0=0.5 mol/L