The rate constant for a first order reaction is 0.54 s-1. If a 1.57 M sample reacts for 12 seconds, what concentration (in molarity) will remain?

Q: Decay of a pollutant is a 1st order reaction with a half-life of 55 days. How many days are needed…

A: If initial concentaration= 100 Final concentration= 100-90=10

Q: A zero-order reaction has a constant rate of 1.50×10−4 M/s. If after 80.0 seconds the concentration…

A: Given: The rate constant of a zero-order reaction = 1.50×10-4 M The concentration of reactant after…

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

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Q: The rate constant for a first-order reaction is 0.54 s What is the half-life of this reaction if the…

A: A first order reaction is one whose rate is directly proportional to concentration of reactant. It…

Q: The rate constant for this first‑order reaction is 0.0660 s−1 at 400 ∘C. A⟶products After how many…

A: GivenK = 0.066 s-1Temperature = 400°CFinal concentration = 20.5% of original

Q: Calculate the initial concentration for a first order reaction with a final concentration of 0.403…

A: GivenOrder of reaction = 1Final concentration = 0.403 Mk = 0.00721 min-1t = 43.2 minInitial…

Q: The reactant concentration in a second-order reaction was 0.520 M after 190 s and 4.00×10−2 M after…

A: For a 2nd order reaction, we know that the concentration and time are related as  1/[A] = 1/[A]0 +…

Q: The decomposition of N2O5 is a first-order reaction. If the half- life time is equal to 1114 second,…

A: Decomposition of N2O5 is first order reaction.. Firstly we need to calculate the rate constant from…

Q: The half life of a first order reaction is 28 second.what is its rate constant?

A: Half life (t1/2) :- " The time required for half of the reactants to convert into products is called…

Q: The rate constant for this first-order reaction is 0.770 s- at 400 °C. A → products How long, in…

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Q: The rate constant for this second‑order reaction is 0.540 M−1⋅s−1 at 300 ∘C.   A⟶products How…

A: Given: Reaction is second order. Rate constant of the reaction = 0.540 M-1s-1. And the concentration…

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: A certain first-order reaction has a rate constant of 0.00950 1/min at 300 K. What is the half-life…

A: Half life is the time when the concentration of reactants becomes half.

Q: The rate constant for this first-order reaction is 0.300 s- at 400 °C. products How long, in…

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Q: The rate constant for a first order reaction is 0.0640 1/s. What is the half-life for this reaction?

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Q: The reactant concentration in a first-order reaction was 7.10×10−2 M after 30.0 s and 5.60×10−3 M…

A: The equation for first order reaction is, A - concentration at time t Ao – initial concentration k…

Q: What is a second-order reaction?

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

Q: The reaction rate constant for the first order reaction is 1.15x10-3s-1. Determine the half-life of…

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Q: The decomposition of A to B is a first-order reaction with a half-life of 13.1 min: A → 2B If the…

A: Given : The reaction is a first order reaction. Half life of reaction = 13.1 min Initial…

Q: The rate constant for this first-order reaction is 0.0275 s−1 at 300 °C. A⟶products If the initial…

A: The expression for first order rate constant is:

Q: There is a reaction in which the initial concentration of the reactants is 0.5 mol/L. Has an order…

A: In this question we will determine the time for the reaction when reactant concentration decrease up…

Q: The rate constant for this zero-order reaction is 0.0190 M · sl at 300 °C. A products How long (in…

A: For zero order reaction,   Where, [A]t = 0.940 M [A]0 = 0.290 M     k = 0.0190 M.s-1

Q: A particular first-order reaction has a rate constant of 0.0167 hr What is the half-life for this…

A: Given  rate constant for first order reaction = 0.0167 hr-1   To find half life for this reaction.

Q: A certain first-order reaction has a rate constant of 0.00710 1/min at 300 K. What is the half-life…

A: The relationship between rate constant and half life for first order reaction is -  Half life,…

Q: How long, in seconds, would it take for the concentration of A to decrease from 0.920 M to 0.240 M?

A: Formula for first order reaction:- ln [A] = ln [A]o - kt  Where [A] = final concentration  [A]o =…

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

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Q: A second-order reaction has a half-life of 10 s when the initial concentration of reactant is 0.99…

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Q: certain substance, initially at 0.10 M in solution, decomposes by second-order kinetics. If the rate…

A: The question is based on the concept of chemical kinetics. it talks of second order reaction for…

Q: The reaction SO,Cl2 (g) --> SO2 (g) + Cl2 (g) is first order. At 660 K it has a rate constant of 4.5…

A: First order reaction. Rate constant = 4.5 × 10-2 s-1 time = 18.9 seconds Initial concentration =…

Q: The table contins concentration data and the initial rate data for the reaction 2NO(g) + H₂(g) →…

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Q: The rate constant for this first‑order reaction is 0.0130 s−1 at 400 ∘C.   A⟶products After how…

A:

Q: In a first-order reaction, the half-life is 133 minutes. What is the rate constant?

A: What are first order reactions? Assume a sample reaction- nA→Product So, first order reactions are…

Q: A particular reaction is found to be first order. The reactant has an initial concentration of 1.71…

A: For first-order reaction, the equation ln[A] = -kt + ln[A]0 depicts a straight line (y = mx + c)…

Q: The rate constant for this second‑order reaction is 0.570 M−1⋅s−1 at 300 ∘C. A⟶products How long, in…

A: Given, The rate constant, K = 0.570 M-1S-1 Initial concentration, [A]0 = 0.820 M Final…

Q: Consider a hypothetical reaction between A, B, and C that is first order in A, zero order in B, and…

A: Given A = First order B = Zero order C = Second order

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: The rate constant for this second-order reaction is 0.980 M-. s at 300 °C. products How long, in…

A:

Q: The rate constant for this second-order reaction is 0.420 M- •s- 300 °C. A products How long, in…

A: Given: Rate constant for second order reaction = 0.420 M-1 s-1 Initial concentration of A = 0.880 M…

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: The rate constant for this first‑order reaction is 0.910 s−1 at 400 ∘C.   A⟶products How long, in…

A: First-order reaction: The rate of the first-order reaction depends only on one reactant. According…

Q: The decomposition of radioactive iodine is a first-order process with a half-life of 8 days. If the…

A: Half-life is the time required for the reaction to be half completed. It is denoted by t1/2 . For a…

Q: The reactant concentration in a second-order reaction was 0.230 M after 230 s and 4.20×10−2 M after…

A: The rate law for a second order reaction is given below,

Q: A certain substance, initially present at 0.500 M, decomposes by second-order kinetics with a rate…

A: Rate constant (k)= 4.0×10-1 L/mol.min Initial concentration (Ao) =0.500 M Concentration after time t…

Q: What is the rate constant of a first-order reaction that takes 459 seconds for the reactant…

A: The time taken during a reaction to reduce the concentration of a reactant to half of its initial…

Q: The rate constant for a first-order reaction is 0.77 s^-1. What is the half-life of this reaction if…

A: The following  equation can be used to calculate the half-life of a first-order reaction. t12=ln…

Q: The half-life of a first-order reaction is found to be 28.25 min.What is the value of the rate…

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Q: A certain substance, initially present at 0.950 M, decomposes by first-order kinetics with a rate…

A: Given, [A] = 0.532 M [A]0 = 0.950 M k = 1.25 × 10-2 mol L-1 s-1

Q: The rate constant for this first‑order reaction is 0.380 s−1 at 400 ∘C. A⟶products How long, in…

A: For First order reactions , time can be calculated as : where k = rate constant           Ao=…