What is the concentration of a reactant after 30 minutes, given the initial concentration is 0.10M....
A first order reaction (A—>B) has a half-life if 30 minutes. If the initial concentration of A is 0.900 M, what is the concentration of B after 60 minutes?
The half-life of a reaction, t1/2, is the time it takes for the reactant concentration [A] to decrease by half. For example, after one half-life the concentration falls from the initial concentration [A]0 to [A]0/2, after a second half-life to [A]0/4, after a third half-life to [A]0/8, and so on. on. For a first-order reaction, the half-life is constant. It depends only on the rate constant k and not on the reactant concentration. It is expressed as t1/2=0.693k For a...
The integrated rate law allows chemists to predict the reactant concentration after a certain amount of time, or the time it would take for a certain concentration to be reached. The integrated rate law for a first-order reaction is: [A]=[A]0e−kt Now say we are particularly interested in the time it would take for the concentration to become one-half of its initial value. Then we could substitute [A]02 for [A] and rearrange the equation to: t1/2=0.693k This equation calculates the time...
The integrated rate law allow chemists to predict the reactant concentration after a certain amount of time, or the time it would take for a certain concentration to be reached. The integrated rate law for a first-order reaction is: [A] = [A]oe -Rt Now say we are particularly interested in the time it would take for the concentration to become one-half of its initial value. Then we could substitute Z" for [A] and rearrange the equation to: A) 1/2= 0093...
Referen The initial concentration of the reactant in a first-order reaction A → products is 0.528 mol/L and the half-life is 27.0 s. (a) Calculate the concentration of the reactant (in mol/L) 54.0 s after initiation of the reaction. moll (b) How long (in s) would it take for the concentration of the reactant to drop to one eighth its initial value? (e) How long (ins) would it take for the concentration of the reactant to drop to 0.0330 mol/L?...
A decomposition reaction has a half-life that inversely depends on the initial concentration of the reactant What is the order of the reaction? second order first order zero order Order cannot be determined without more information
A particular reactant decomposes with a half-life of 149s when its initial concentration is 0.352M. The same reactant decomposes with a half-life of 237s when its initial concentration is 0.221M. Determine the reaction order. What is the value and unit of the rate constant for this reaction?
A reactant decomposes with a half-life of 11.5 s when its initial concentration is 0.150 M. When the initial concentration is 0.875 M, this same reactant decomposes with a half-life of 67.1 s. What is the order of this reaction? What is the value and unit of the rate constant for this reaction?
A reactant decomposes with a half-life of 35.1 s when its initial concentration is 0.359 M. When the initial concentration is 0.733 M, this same reactant decomposes with a half‑life of 71.7 s. What is the order of the reaction? 1 2 0 What is the value and unit of the rate constant for this reaction? ?= Unit:
A reactant decomposes with a half-life of 131 s when its initial concentration is 0.269 M. When the initial concentration is 0.755 M, this same reactant decomposes with the same half-life of 131 s. What is the order of the reaction? 0 wnat is the value and unit of the rate constant for this reaction? Number