If you double the concentration of a reactant and the rate doubles, the reaction is first order with respect to that reactant

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: Choose all of the following that are false.     If you know a reaction is elementary, then you…

A: 1) If you know a reaction is elementary, then you know the rate law of the reaction. Elementary…

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: The rate constant of a first-order reaction, A→ products, can be determined from a graph of In[A]…

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Q: A first-order reaction is 45% complete at the end of 35 minutes.What is the length of the half-life…

A: Given that, the reaction is 45% complete in 35 minutes.  For a first order reaction,    ln [ A ]  =…

Q: A first-order reaction (A 25 minutes. If the initial concentration of A is 0.400 B) has a half-life…

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Q: The radioactive decay of a certain isotope is A first-order process that has a half-life of 242…

A: Given data First order process for decay of isotope. half life : t1/2=242 min Time : t=45 min

Q: The half-life of the reaction does not depend on the initial concentration of the reactant if the…

A: half-life of the reaction does not depend on the initial concentration of the reactant

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: The rate of a reaction is quadrupled when the concentration of one reactant is quadrupled. What is…

A: The question is based on the concept of chemical kinetics. In involves calculation of order of the…

Q: If you know that a substance has dissociated a first-order reaction, and if its concentration after…

A: Formula used : t1/2 = ln(2)/K [A] = [A]. e-Kt

Q: If a reaction is first-order with respect to each of its two reactants, then the rate of the…

A: First write down the rate law for given data and check the correct option related to it.

Q: For what order reaction does the half-life get longer as the initial concentration increases?

A: Half Life of a reaction: It is the time required by reaction to get its half of initial…

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

A: ANSWER IS

Q: What is the rate for the second order reaction

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Q: When the initial concentration of the reactant increases, the half life of a 1st order reaction will…

A: Given : Initial concentration of reactant is increasing.

Q: What data should be plotted to show that experimental concentration data fits a first-order…

A: In first order reactions, the rate of reaction depends linearly on the concentration of one reactant…

Q: The rate expression will vary based on the reactant being observed. What does the rate expression…

A: For any reaction, the rate law of the reaction or rate expression is given by (Writing a general…

Q: What is meant by the terms "order of reaction" and "instantaneous rate" as used in chemica netics?

A: The reaction order is the relationship between the concentrations of species and the rate of a…

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

A: The progress of the reaction depends on the order of the reaction.

Q: A) the rate of a reaction is dependent on the equilibrium constant. B) the rate of a first order…

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Q: If the rate of a reaction is four times as fast when the concentration of a reactant is doubled,…

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Q: In the reaction A → products, what is the order of reaction if the reaction proceeded at the same…

A: A zero-order reaction is the one in which the rate of reaction is independent of the concentration…

Q: The mathematical equation that linearly relates the concentration of the reactant against time is…

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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: 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: What is the order of the reaction if its half-life is 15 minutes. Take note that the concentration…

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Q: Match the following descriptions to the appropriate term. Rate of reaction Rate law Rate constant…

A: Rate of reaction : It is speed with which chemical reaction takes place .

Q: The half-life of a second-order reaction as the initial concentration of the reactant in the…

A: Solution From the speed law equations given on top of, it are often understood that second order…

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

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Q: Write the rate of expression for the following reactions

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Q: What is the rate constant for this reaction? Do not report units. Report the number with 2 places…

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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: Which of the following is incorrect about a zero-order reaction? *

A: Zero-order reactions are typically found when a material that is required for the reaction to…

Q: determine the overall order of this reaction

A: We can determine the order of a reaction graphically. For zero order reaction, concentration…

Q: Draw a schematic graph showing how the rate of a first order reaction changes in concentration of…

A: First order reaction For a reaction, A→Product the rate law can be written as; rate=K [A] The…

Q: A first order reaction initially contains 2.10 × 10²⁰ molecules. If the reaction has a half-life of…

A: The half-life of a reaction is defined as the time required for the reactant concentration to…

Q: How do you determine the overall order of the reaction?

A: Rate = k * [I-]^a * [S2O8 2-]^b k = Rate constant a,b: Order of reaction Now, Rate 1 / Rate 4 = k *…

Q: How could you determine the rate constant for a reaction that obeys 2nd order kinetics? The rate…

A: How could you determine the rate constant for a reaction that obeys 2nd order kinetics?

Q: A  reaction that has a rate only dependent  on catalyst will be a.Zero order reaction b.First…

A: A reaction that has a rate only dependent  on catalyst will be zero order reaction.  Catalyst change…

Q: If you double the concentration of a reactant and the rate doubles, the reaction is first order with…

A: Let say a symbolic first order reaction is - A   =>  B The rate of reaction of above First order…

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

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Q: If a reactant is 1st order and the concentration is doubled, how fast is the rate?

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Q: For a reaction which is first order with respect to one reactant, plotting result in a straight…

A: We will write rate law of first order reaction and then answer the question.

Q: Assuming that the loss of ability to recall learned material is a first-order process with a…

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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.

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.