Question

Calculation (10 pts each) It takes 42.0 min for the concentration of a reactant in a first-order reaction to drop from 0.45 M to 0.32 M at 25°C. How long will it take for the reaction to be 50% complete? (hint: obtain the rate constant k first, then calculate t1/2) The half-life (t1/2) for the reactant A in the first order reaction below is 25 seconds. What is the rate constant k for this reaction at the same temperature? A ? B

          Calculation (10 pts each)
It takes 42.0 min for the concentration of a reactant in a first-order reaction to drop from 0.45 M to 0.32 M at 25°C. How long will it take for the reaction to be 50% complete?
(hint: obtain the rate constant k first, then calculate t1/2)

The half-life (t1/2) for the reactant A in the first order reaction below is 25 seconds. What is the rate constant k for this reaction at the same temperature?
A ? B

Calculation (10 pts each)
It takes 42.0 min for the concentration of a reactant in a first-order reaction to drop from 0.45 M to 0.32 M at 25°C. How long will it take for the reaction to be 50% complete?
(hint: obtain the rate constant k first, then calculate t1/2)

The half-life (t1/2) for the reactant A in the first order reaction below is 25 seconds. What is the rate constant k for this reaction at the same temperature?
A ? B

Added by Francisca P.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Adi S

06/13/2023

Step 1

We are given the initial concentration, final concentration, and time for a first-order reaction. Show more…

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Calculation (10 pts each) It takes 42.0 min for the concentration of a reactant in a first-order reaction to drop from 0.45 M to 0.32 M at 25°C. How long will it take for the reaction to be 50% complete? (hint: obtain the rate constant k first, then calculate t1/2) The half-life (t1/2) for the reactant A in the first order reaction below is 25 seconds. What is the rate constant k for this reaction at the same temperature? A → B