A reactant in a first-order reaction falls to 11.43% of its initial value in 11.04 s....
A reactant in a first-order reaction falls to 11.43% of its initial value in 11.04 s. What is the value of the rate constant expressed in s-1?
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A reactant in a first-order reaction falls to 11.43% of its
initial value in 11.04 s....
For a certain first-order reaction, is takes 2880 seconds for the concentration of the reactant to...
For a certain first-order reaction, is takes 2880 seconds for the concentration of the reactant to decrease to 25% of its initial value. What is the value for the rate constant (in s^-1) for the reaction? a) 2.9 times 10^-2 s^-1 b) 6.0 times 10^-3 s^-1 c) 4.8 times 10^-4 s^-1 d) 1.0 times 10^-4 s^-1
The half-life of a reaction, t1/2, is the time it takes for the reactant concentration [A]...
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...
Referen The initial concentration of the reactant in a first-order reaction A → products is 0.528...
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 particular reactant decomposes with a half-life of 165 s when its initial concentration is 0.358...
A particular reactant decomposes with a half-life of 165 s when its initial concentration is 0.358 M. The same reactant decomposes with a half-life of 239 s when its initial concentration is 0.247 M. Determine the reaction order. 0 1 2 What is the value and unit of the rate constant for this reaction?
A particular reactant decomposes with a half-life of 153 s when its initial concentration is 0.397...
A particular reactant decomposes with a half-life of 153 s when its initial concentration is 0.397 M. The same reactant decomposes with a half-life of 233 s when its initial concentration is 0.261 M Determine the reaction order. O 1 What is the value and unit of the rate constant for this reaction? Number s additional feedback
A reactant decomposes with a half-life of 35.1 s when its initial concentration is 0.359 M....
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 particular reactant decomposes with a half-life of 139 s when its initial concentration is 0.356...
A particular reactant decomposes with a half-life of 139 s when its initial concentration is 0.356 M. The same reactant decomposes with a half-life of 233 s when its initial concentration is 0.212 M. Determine the reaction order. 0 2 1 What is the value and unit of the rate constant for this reaction? k=? units=?
A reactant decomposes with a half-life of 48.3 s when its initial concentration is 0.118 M....
A reactant decomposes with a half-life of 48.3 s when its initial concentration is 0.118 M. When the initial concentration is 0.240 M, this same reactant decomposes with a half-life of 98.3 s. What is the order of the reaction? 01 O2 00 What is the value and unit of the rate constant for this reaction? Unit: M-s-1
A reactant decomposes with a half-life of 167 s when its initial concentration is 0.301 M....
A reactant decomposes with a half-life of 167 s when its initial concentration is 0.301 M. When the initial concentration is 0.661 M, this same reactant decomposes with the same half-life of 167 s. What is the value and unit of the rate constant for this reaction? What is the order of the reaction? K=? also k =0.00475 s-1 is not the answer
A certain reactant disappears by a first order reaction that has a rate constant K= 3.5x10^-3...
A
certain reactant disappears by a first order reaction that has a
rate constant K= 3.5x10^-3 s-1. If the initial concentration of the
reactant is 0.500 M , how long will it take for the concentration
to drop to
0.200 M ?
4. A certain reactant disappears by a first-order reaction that has a rate constant k=3.5 x 10 s. If the initial concentration of the reactant is 0.500 M, how long will it take for the concentration to drop...
For a certain first-order reaction, is takes 2880 seconds for the concentration of the reactant to decrease to 25% of its initial value. What is the value for the rate constant (in s^-1) for the reaction? a) 2.9 times 10^-2 s^-1 b) 6.0 times 10^-3 s^-1 c) 4.8 times 10^-4 s^-1 d) 1.0 times 10^-4 s^-1
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...
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 particular reactant decomposes with a half-life of 165 s when its initial concentration is 0.358 M. The same reactant decomposes with a half-life of 239 s when its initial concentration is 0.247 M. Determine the reaction order. 0 1 2 What is the value and unit of the rate constant for this reaction?
A particular reactant decomposes with a half-life of 153 s when its initial concentration is 0.397 M. The same reactant decomposes with a half-life of 233 s when its initial concentration is 0.261 M Determine the reaction order. O 1 What is the value and unit of the rate constant for this reaction? Number s additional feedback
A reactant decomposes with a half-life of 48.3 s when its initial concentration is 0.118 M. When the initial concentration is 0.240 M, this same reactant decomposes with a half-life of 98.3 s. What is the order of the reaction? 01 O2 00 What is the value and unit of the rate constant for this reaction? Unit: M-s-1
A
certain reactant disappears by a first order reaction that has a
rate constant K= 3.5x10^-3 s-1. If the initial concentration of the
reactant is 0.500 M , how long will it take for the concentration
to drop to
0.200 M ?
4. A certain reactant disappears by a first-order reaction that has a rate constant k=3.5 x 10 s. If the initial concentration of the reactant is 0.500 M, how long will it take for the concentration to drop...
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