After 66.0 min, 30.0% of a compound has decomposed. What is the half‑life of this reaction assuming first‑order kinetics?   ?1/2= _____ min

Q: For the following first order reaction, the rate constant is 0.128 and the [A]0 = 8.44.  Calculate…

A:

Q: If the half life of a certain second-order reaction (see below) is 45 s when the concentration of AB…

A:

Q: A second order reaction has a half-life of 132.1 min. When the initial concentration of L is 0.00185…

A:

Q: Drug X has an expiration date that is 1.5 years after the date it was manufactured. Drug X…

A: Integral equation for first order of reaction:For first order reaction:…

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: Calculate the time in minutes for the first order reaction A--->B to be 30.9% completed knowing the…

A: Given Reaction:-  A    -------> B Reaction is first order.  Half-life, t1/2 = 220 min

Q: Which of the following statements is  false?         The rate of a first order reaction is dependent…

A:

Q: Consider the data presented below. Time  0 40 80 120 160 Moles of  0.100 0.067 0.045 0.030 0.020…

A: First, we will put the values given in the table to calculate the rate constant and to observe that…

Q: The rate constant for this first-order reaction is 0.0246 s−1 at 300 °C.   A⟶products Calculate…

A: The given reaction is of first order. k = rate constant = 0.0246 s-1 FInal mass after t = 1.28 mins…

Q: Calculate the rate constant, ?, for a reaction at 73.0 °C that has an activation energy of 75.4…

A: Since we are entitled to answer up to one question, we’ll answer the first question as you have not…

Q: Calculate the half-life (in minutes) for a radioactive substance which loses 42.5% of its original…

A: After 1 hour it loses 42.5% of its original intensity, which means after 1 hour 57.5% of the…

Q: the first order reaction A-->B+C has a half life of 3.00 minutes. What is the rate equation for this…

A:

Q: The rate constant for the second-order conversion of A to B is 3.33 M-1hr-1. If the initial…

A:

Q: Radioactive elements decay via first-order kinetics. Consider a certain type of nucleus that has a…

A: As radioactivity follows first order kinetics , so we can find time required in the first problem.

Q: A second order reaction has an initial concentration of 1.53 M.  If the half-life of the reaction is…

A: The solution is as follows:

Q: Benzoyl peroxide, the substance most widely used against acne, has a half-life of 9.8 ×103days when…

A: Given that: Half life = 9.8×103 days

Q: measured the kobs at 36 degrees celcius for the hydrolysis of aspirin to be 0.0342 min-1. What is…

A: We know that, the hydrolysis of Aspirin is first order kinetic it's obey pseudo first 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: The thermal decomposition of N2O5 obeys first-order kinetics. At 45°C, a plot of ln[N2O5] versus t…

A: Given, slope of −6.40 × 10−4 min−1

Q: What mass of radioactive radium-226 has been lost from an original sample of 20.0 g of radium-226…

A:

Q: 7) A compound decomposes by a first-order process at a certain temperature. If 8.25% of it remains…

A: Given data, Final amount of reactant, A = 8.25 Time of reaction, t = 120 minutes Formula Used,…

Q: 6. A reaction believed to be either first or second order has a half-life of 20s at the beginning of…

A:

Q: A hypothetical chemical reaction with a single reactant and negligible back reaction is 40.0%…

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

Q: In a first order reaction [A] obtains a value of 57% of [A]0 at a time of 1.35 x 10^2 seconds.…

A:

Q: A certain reaction is first order with a half-life of 57.9 minutes. If the initial concentration of…

A: Half life period is time period at which concentration of reactant is half of its initial…

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: For the following first order reaction, the half-life is 94.3 and the [A]0 = 8.64.  Calculate the…

A: Given :-  2 A  →  3 B         (first order reaction) t1/2 = 94.3 s  [A]0 = 8.64  To be calculated :-…

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

A:

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 reactant decomposes with a half-life of 15.9 s when its initial concentration is 0.176 M. When the…

A: Given: Half-life of reactant is 15.9 s when the initial concentration is 0.176 M. Half-life of…

Q: The half life of a first order reaction is 36.8 seconds.  How many seconds must the reaction proceed…

A:

Q: In the first order reaction:  A   -->   products, it is found that 1% of the original amount of the…

A:

Q: The reaction A → B follows first-order kinetics with a half-life of 21.7 hours. If the concentration…

A: Integral equation for a first order reaction is as follows:   where k is rate constant  Ro= initial…

Q: The radioactive isotope 28Mg has a half-life of 20.9 hours. (a) What is the rate constant for this…

A: The half life of radioactive 28Mg isotope, t1/2 = 20.9 h

Q: Consider the reaction: 2A + 3Z -> 5E. Assume that when [Z] = 0.054 M, the reaction rate is equal to…

A: The balanced chemical equation is: 2A + 3Z  → 5E Initial concentration of Z, [Z] = 0.054 M  Reaction…

Q: The first-order rate constant for the decomposition of a certain antibiotic in water at 20oC is 1.65…

A: According to the first order reaction,k=1tlna0ak=rate constantt=timea0=initial…

Q: The single reactant A decays into product P by zero-order kinetics.  What was the initial…

A: Given, A ➝ P The reaction is zero order kinetics. Time (t) = 121 min Rate constant (k) = 0.0041 M…

Q: Carbon-14 is used to determine the age of biological samples. Carbon-14 decays via a first order…

A:

Q: A reactant decomposes with a half-life of 149 s when its initial concentration is 0.312 M. When the…

A:

Q: half-life

A:

Q: What is the half-life (seconds) of a reaction that has a rate constant, k = 0.00554 M/s where the…

A:

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

A:

Q: A first-0order reaction has a half-life of 1.34 x 103 hours. If the initial concentration of…

A:

Q: Indicate the order of reaction consistent with each observation.a. The half-life of the reaction…

A: a) The given observation is the half-life of the reaction gets shorter as the initial concentration…

Q: the half-life of a first order reaction A-->B is 5.0 min. how many minutes will it take to reduce…

A: Half life of radioactive decay is the time at which reactant concentration becomes Half.

Q: A substance undergoes first-order decomposition. After 31 min at 500°C, only 12.5% of the original…

A: The given substance undergoes first-order decomposition. After 31 min 12.5 % of the original sample…

Q: The reaction A =products is first order in A.Initially, [A] = 0.600 M; and after 48 min, [A] = 0.100…

A:

Q: The following reaction is first-order. If the rate constant for the reaction is 5.52 x 10-4 s-1, how…

A:

Q: Use the graph to answer the questions below. Report answers to 3 significant figures. a. What is the…

A: Since we only answer up to 3 subparts, we'll answer the first three. Please resubmit the question…

Q: At 25°C the rate constant for the first-order decomposition of a pesticide solution is 6.40 x 10-3…

A: