What is the half-life of a 1st order reaction

Q: For a certain first-order reaction A-B, the concentration of A after 20 minutes is 75% of the…

A: Time taken = t = 20 minutes. Let initial concentration  = a0 =   x  But final concentration is 75%…

Q: 12. Only 25% of reactant A remained after 42 minutes for a certain second-order reaction of A →…

A: A second-order reaction has a reaction rate that is proportional to the product of the concentration…

Q: What is the rate constant of a first-order reaction if the half-life is 2.50 min? 1/m 4. 6. 3. 2.

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Q: A first-order reaction has a rate constant of 0.33 min−1. It takes ________ min for the reactant…

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Q: For a one-reactant type of reaction, A --> Products, the rate of reaction is observed to be reduced…

A: Rate of the reaction is depend on the order of reaction

Q: A second order reaction (A -->  products) has a rate constant of  6.2 x 10-4 M-1s -1 . If the…

A: Given: The rate is constant of the given reaction, (K) = 6.2×10-4M-1s -1. The initial concentration…

Q: The reactant concentration in a first-order reaction was 6.80×10-2 M after 25.0 s and 2.10×10-3…

A: First order kinetic reaction are those in which the rate is direcdirectly proportional to the…

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: Time (s) [N205] (M) 0.0365 600 0.0274 2 N205 (aq) → 4 NO2 (aq) + 02(g) 1200 0.0206 1800 0.0157 2400…

A: Recall the given reaction,                     2 N2O5 aq  →  4 NO2 aq  +  O2 gThis is a first…

Q: A reaction was shown to follow second-order kinetics. How much time is required for [A] to change…

A: Reaction is following second order kinetics. Initial concentration of [A] (i.e. [A]0 ) = 0.500 M…

Q: 3. The half-life for the reactant A in the first order reaction A B is 36.2 seconds. What is the…

A: We know that, Half-life of a first-order reaction = 0.693/k Where, K = rate constant  Given, t1/2 =…

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: A first-order reaction is 35.6% complete in 480 s. Calculate the value of the rate constant

A: Recall the following reaction for first order reaction                                 lnAoA=Kt…

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

A: Given that, in first order reaction; Initial concentration of  a reactant = 0.860 M We have to find…

Q: he rate constant for a zero-order reaction is 0.54 L mol-1 s-1. What is the half-life of this…

A: In some reactions, the rate is apparently independent of the reactant concentration. The rates of…

Q: For a 1rst order reaction, how many half-lives are required for the concentration of reactant to…

A: Half life of a first order reaction represents the time taken by the reactant to reduce to half of…

Q: It took 885.8 s for 52.17% of a substance to react according to first-order kinetics. What is the…

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Q: What is the order of a reaction where each successive half life gets shorter and is dependent upon…

A: ★ Answer :  Zero order

Q: Calculate the rate constant (in units M/min) for a zero order reaction

A: Given :        t1/2 = 82.4 min        [A]o=0.787 M To calculate :           rate constant (k)

Q: ?       1.33e-06 1/s     The answer is not shown.     8.61e-07

A: Integrated equation for first order reaction is ;  kt = 2.303 • log( a/a-x )  At half life…

Q: 12. What is the half-life of a 1st order reaction whose rate law constant is 3.7x10-3s-1? a. 190…

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Q: At a given temperature, a first-order reaction has a rate constant of 1.5 × 10–3 s–1. The time…

A: Given data is as follows:                The rate constant (K) of the first order reaction =…

Q: The half-life for the second order reaction A → Products is 4.57 min. What is the value of the rate…

A: For a Second order reactiont1/2 = 1KA0where t1/2 = half lifeK = rate constantA0 = Initial…

Q: P) For a particular first-order reaction, it takes 48 minutes for the concentration of the reactant…

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Q: What is the rate constant (s -1) of a first-order process that has a half-life of 364 s?   -1.37 ×…

A: For first order of Reaction the half life period can be written as -   t1/2 = 0.692/k Or k =…

Q: What is the half-life of a 1st order reaction whose rate law constant is 7.6x10-4s-1? A.…

A: half life = .693/.00076 half life = 910

Q: The initial concentration of a reactant A in a second order reaction is 0.8 M. What will be the…

A: Given: Initial concentration of reactant A = 0.80 M Order of the reaction = 2 And the time passed =…

Q: 9. The half-life for a first-order reaction is 32 s. What was the original concentration if, after…

A: Given that : Half-life for the reaction (t1/2)= 32 seconds Concentration after t = 2 minutes(= 120…

Q: What is the rate constant of a first-order reaction if the half-life is 5.32 min?

A: Suppose a chemical reaction as follows --- A  →  P    (Where, A = reactant and P =product) Given…

Q: a. The reactant concentration in a first-order reaction was 7.40×10−2 M after 35.0 s and 9.60×10−3 M…

A: Since we know that, for different order of reactions, the relationship between the concentration of…

Q: The generic reaction     2 A   →   products     follows zero-order kinetics with a rate constant of…

A: Given- Reaction  2 A   →   products   Order of reaction = 0 Rate constant = 0.00628 M/s.  Original…

Q: 6. Use the progress of reaction diagram to answer four questions. 80 70 60 50 40 30 20 10 Reaction…

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Q: An elementary reaction 3A -> P has a third-order rate law with k=1.24 M-2 s-1.Calculate the time…

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

A: The integrated equation for second order reaction is shown below: Where; [A] = concentration at…

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

A: 2HI (g) ------> H2 (g)+ I2 (g) Reaction follows 2nd order kinetics. Rate constant, k = 0.372…

Q: For the 1st order reaction whose rate law constant, k, is 2.5x10-5s-1,

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Q: What is a unimolecular reaction? What is the reaction order of a unimolecular elementary reaction?…

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Q: If the half-life of a 1st order reaction is 67 minutes, k=

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Q: Consider the hypothetical first-order reaction below: B D Which of the following statements is TRUE?…

A: Given following balanced Chemical equation -  B -----> D  Also given that it is a first order…

Q: the decomposition of compound Y02 is the first order reaction.The half-life of reaction is 25.5…

A: a) 0.108 M min-1 b) 32.4

Q: john measures the rate constant of a first order reaction to be 1.35 × 102 s-1 at 25.0°C. What is…

A: Given: The initial temperature is 25 degree Celsius. The initial rate constant is 1.35 × 102 s-1 .…

Q: The half life for a first order reaction is 45 min. What is the rate constant in units of s?…

A: Reaction is of first order reaction kinetics. Half life time is 45 min  We have to find rate…

Q: A particular second order reaction has a rate constant of 0.0345 M-1 min-1 and an initial…

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Q: 70. The half-life of a first-order reaction does not depend on the initial concentration of…

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Q: For a certain first order reaction, it takes 449 seconds for the concentration of reactant to…

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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: a particular 2nd order reaction A --> products has a [A]time=0 = .45M and a [A]time=35sec = .13 M.…

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Q: 4.2 * 10 - 4s - 1 . What is the half- life 4. The rate constantk for a first-order reaction is equal…

A: Half life is the time at which the initial amount of reactant is reduced to it's half value.

Q: The first-order reaction, SO2C12 - SO2 + Cl2, has a rate constant equal to 2.20 × 10-5 s-1 at 593 K.…

A: The reaction is – SO2Cl2 →SO2 +Cl2

Q: The reactant concentration in a zero-order reaction was 9.00×10−2 MM after 115 ss and 3.50×10−2 MM…

A: In case of a zero order reaction, the rate of the reaction does not depend upon the concentration of…