In a particular dating method, optically active proteins in organic material racemerize over time according to first-order kinetics. D--> L. Calculate the rate of this reaction if 10% of the D is transformed in 175 years.

Q: particular first order reaction has a rate constant of 0.330 min-1. How many minutes will it take…

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Q: The following reaction:  CH3CH2Br + H2O ---> CH3CH2OH + HBr is first order with respect to…

A: The order with respect to CH3CH2Br is 1.The order with respect to H2O is 1.

Q: What is the reaction rate constant given the plot of the reaction of reactant A with respect to time…

A: here we are required to find the rate constant for the first order reaction

Q: Explain why the coefficients of an elementary step equal the reaction orders of its rate law but…

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Q: Calculate the half-life of a first-order reaction if 66% of the reactants are reacted within 66 s.

A: Given- Reaction is first order reaction assume reactant is 100% Reactant reacted =66% Reactant…

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: nts than first-order reactions. st-order reactions s collide.

A: 1- Higher order Reactions are quite rare because collision frequency Decreases between the…

Q: first order reaction occurs with a rate constant of 5.6x10−3 s−1 at room temperature (20oC). If the…

A: Chemical kinetics is the study of the reaction that how fast or slow a reaction is taking place. The…

Q: The reaction 2NO(g)   +  2H2 (g)  ---->  N2(g)   +  2H2O(g) follows second-order kinetics.  At…

A: Given: The initial concentration of NO is 0.200 M. The time (t) is 100.0 s After time 't' (100.0 s),…

Q: For a given reaction below: A + 3B --------> 2C + D The reaction is first order with respect to…

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Q: A first order reaction has a rate constant of 1.3x10-8s-1.How long in minutes will it take for the…

A: Given, first order rate constant k = 1.3 x 10-8 s-1            Initial concentration = 0.8 M…

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 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: In a study of the alcohol dehydrogenase cata lysed oxidation of ethanol. the molar concentration of…

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Q: The decomposition of a certain insecticide in water at 12 °C follows first-order kinetics with a…

A: a To find the concentration of the insectiside: Here we consider a first order reaction for which we…

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

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Q: At a certain temperature this reaction follows second-order kinetics with a rate constant of 0.325M…

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Q: Calculate the activation energy of a first-order reaction that is 20% completein 15 minutes at 40 °C…

A: It is given that a first order reaction is 20% complete at 15 minutes at 40°C and 20% complete at 3…

Q: A first order reaction has a rate constant of 0.0051 min-1. If we begin with 0.10 M concentration of…

A: Given, Rate constant, k = 0.0051 min-1. Initial concentration, A◦ = 0.10 M Time = 3 hours…

Q: For a certain first-order reaction at a certain temp, it takes 8.5 min for the reactant…

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Q: The rate constant for a first-order reaction A --> B is  0.322×10−3s−1 If the initial concentration…

A: Given,rate constant=0.322×10-3 s-1Initial concentration Ao=1.5 Mt=?Final concentration, [A]=0.5 M

Q: The second-order rate constant for the reaction CH3COOC2H5(aq) + OH−(aq) → CH3CO2−(aq) +…

A: Initial concentration of ester = ao = 0.11 mol/L Initial concentration of NaOH = ao = 0.06 mol/L…

Q: Hydrolysis of a hormone is a first-order reaction with a rate constant of 0.125 years-1. What will…

A: Use first order kinetic formula to get all the answer.

Q: A certain first order reaction has a rate constant of 1.0 x 10-3s-1at 250C. If the reaction rate…

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Q: Chemical B reacts by first-order kinetics. If the initial concentration of chemical B is 1.2 M and…

A: The answer is given as follows

Q: The initial concentration of a reactant in a first order reaction is 0.860 M. What will be its…

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

Q: After 40.0 min, 22.0% of a compound has decomposed. What is the half-life of this reaction assuming…

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Q: A first-order reaction has a rate constant k = 0.0815 s-1 at a temperature of 65oC and a rate…

A: To calculate activation energy of the reaction in kJ/mole with the given rate constant at different…

Q: The half-life of a first-order reaction does not depend on the initial concentration of reactant.

A: A ------ > product   For first order reaction, rate law expression is,  Rate = k[A]

Q: A first-order chemical reaction is observed to have a rate constant of 24 min-1. What is the…

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Q: For a first order reaction the concentration of reactant remaining as a function of time is shown by…

A: FIRST ORDER REACTION: A first order reaction is a chemical reaction which depends only on the…

Q: 4. Given thát the IT-life of å a 100 mg drug that follows a first-order process is 30min. How long…

A: 15.5 min

Q: What is the reactant concentration after 78.9 seconds for a second order reaction with a half-life…

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Q: The isomerization reaction of cyclopropane to propene at 500°C follows first-order kinetics with a…

A: Given : Order of reaction is = 1 Rate constant of reaction = 6.70 X 10-4 s-1  And concentration of…

Q: Compound K decays slowly by second order kinetics with a rate constant of 0.33 M-1 yr-1. You measure…

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Q: if the initial concentration of both the reactant following second order reaction kinetics are the…

A: Initial concentration (A0) = 100 (value is not given so we will assume concentration is 100)  Final…

Q: The reaction of C4H Cl with water is a first-order reaction. The reaction half-life is 340 s. If the…

A: The given problem can be solved by using the formula for the first order given below as;      First…

Q: The uncoiling of deoxyribonucleic acid (DNA) is a first-order reaction. Its activation energy is 420…

A: Given that: At temperature, 37°C, rate constant is 4.90 × 10-4 min-1 At temperature, 39°C, rate…

Q: For A --> B --> C consisting of two consecutive first-order reactions, what is the molar…

A: The consecutive reaction follows first order reaction : A ---> B ----> C  Time = 50 minutes…

Q: The thermal decomposition of acetaldehyde, CH3CHO --> CH4 + CO, is a second-order reaction. The rate…

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Q: It takes 5 minutes to reduce a certain reactant to 75% its original value, following a third-order…

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Q: The decomposition of compound XYZ is a 2nd order reaction. Initially, the concentration of XYZ was…

A: Given data is as follows: The initial concentration of XYZ A°= 2.80 M The concentration of XYZ at…

Q: The initial concentration of a reactant in a first order reaction is 0.860 M. What will be its…

A: Given  Order of a reaction = 1  Initial Concentration of Reactant (A0)    =  0.860 M  Number of Half…

Q: 3) A certain first-order reaction has a half-life of 20.0 minutes. a. Calculate the rate constant…

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Q: For a certain first order reaction, 20 % of the reactant is consumed after the 90. min. How long…

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Q: After 51.0 min, 16.0% of a compound has decomposed. What is the half-life of this reaction assuming…

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Q: For a type II second-order reaction, the reaction is 60% complete in 60 seconds when [A]0 = 0.1 M…

A: The rate constant for a second-order reaction can be given as: k=2.303(a-b)tlog(a-x)b(b-x)a…

Q: 1. Show mathematically that for a first order reaction, it takes approximately ten times as long to…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: What is the rate constant of a first-order reaction that takes 375 seconds for the reactant…

A: For the 1st order reaction we know that, t1/2 = (0.6932/K), K = rate constant.