If you know that a substance has dissociated a first-order reaction, and if its concentration after one minute has is 0.01 mol /L, what is the initial concentration of this substance, (given that the half-life is equal to 22 seconds)?

Q: Changing the initial concentration of the reactant will not affect the half-life of the reaction…

A: Half life of first order reaction is independent on initial concentration

Q: How many half-lives are required to reduce the concentration of a first order reaction to 6.25% of…

A: Half life means (initial concentration /2) means 50% of initial concentration will be remained after…

Q: A second-order reaction has a first half-life of 168 s. What will be the value of the fourth…

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Q: The half-life for radioactive decay (a first-order process) of plutonium-239 is 24,000 years. How…

A: SOLUTION: Step 1: Half-life of Plutonium- 239 is 24,000 years. The radioactive disintegration…

Q: If concentration is in mol/L and time is in seconds, what will be the units of the rate constant k…

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Q: Show that the half-life of a second order reaction depends on the initial concentration of a…

A: The second order reaction is one whose order with respect to reactant is 2. The general…

Q: The initial [Z] is 3.00M decomposes for 36 minutes to 0.375M remaining. What is the half-life in…

A: First order reaction- the reaction whose rate is depends on only single reaction whose concentration…

Q: Show that the time constant of a first order reaction is the reciprocal of the rate constant

A: In a first order reaction, the rate of the reaction depends on the first order of the concentration…

Q: the units below which are appropriate for a second order reaction rate constant

A: Unit of rate constant for a 2nd order reaction.

Q: Show that a first order reaction can be studied even when the initial concentration of the reactant…

A: We need to show that to study first order reactions we do not need the initial concentration.

Q: The conversion of A into B was found to follow first-order kinetics with a half life of 5725 minutes…

A: The conversion of A into B was found to follow first-order kinetics with a half life of 5725 minutes…

Q: а) b) When In (concentration) is plotted against t (time) for a first-order reaction, what kind of…

A: ANSWER IS

Q: main after 120 seconds if the e is 60 seconds for a first-ord action?

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Q: slope is -0.0450 for this reaction, determine the rate constant

A: Given,  Slope = -0.0450 We know that, for the variation in concentration vs time the slop of the…

Q: a. R = k[A][B] b. R = k[A]³[B] c. R = k[A][B]² d. R = k[A]³[B]?

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Q: The half-life is the time it takes for a reactant to halve its concentration. The half-life whose…

A: The relationship between hal-life time and initial concentration of reactants is given by  t1/2 ∝…

Q: How to Determine First-order Reaction?

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

Q: For a first order reaction that has a half-life of 69 s at 80 celsius, the value of the rate…

A: Given, For a first order reaction, Temperature (T)  Half Life (t1/2) = 69 s Rate constant (k) = ?…

Q: Carbon-14, which is present in all living tissue, radioactively decays via a first-order process.…

A: Given: Half-life of cobalt isotope = 5.27 years

Q: The half-life in a second order equation is independent of the initial concentration of the…

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Q: A student says, “The initial concentration of a reactant was doubled, and the rate doubled.…

A: First order reaction is that reaction which depends on one reactant concentration only whereas in…

Q: A certain first-order reaction is 45.0% complete in 65 s. Determine: (a) the rate constant and (b)…

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Q: The reaction A-B is first order, and has a half-life of 375.1 s. If the concentration of A after…

A: t1/2 = 375.1 s t = 629.0 s [A] = 0.167 M [Ao] = (to find)

Q: Show that for a first order reaction, the time required for half the change (half-life period) is…

A: Half life is the time period in which half of the reactant is consumed.

Q: Analyze the following mechanism: What are the intermediates and catalysts if there are any? What is…

A: A catalyst is a foreign species which enhances rate of reaction..It is regenerated at the end of…

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: Give a mathematical expression for the half-life of a first order reaction and of a second order…

A: Half life period of a reaction is the time in which half of concentration of Reactants consumed. It…

Q: . Show that the half-life for a first-order reaction is inversely proportional to the rate constant,…

A: Half life of a reaction is the time required for a reactant to reach one-half of its initial…

Q: What is the half-life of a first-order reaction if k=0.045 s¹? Your Answer: Answer units

A: For the first order reactions, half life = 0.693K where  K = rate constant

Q: What are the units of the rate constant for a third order reaction? Can you explain with…

A: The rate of a third-order reaction is determined by the concentration of one reactant raised to the…

Q: The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half…

A: The objective of this question is to determine the concentration of a drug in the bloodstream 207…

Q: A first order reaction has a half life 445.44 seconds. What is the rate constant in reciprocal…

A: The half-life of the first order reaction is 445.44 seconds. The half-life and rate constant are…

Q: After 20 min, a reactant has decomposed to 85% of its original concentration. Which order would the…

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