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**ulvimp4**:

In the first order "A -> products" reaction, initially [A] = 0.816 M, after 16.0 minutes it is [A] = 0.632 M. rate constant , what is the value of k ?

**Borek**:

Please read the forum rules, you have to show you efforts at answering the question to receive help.

**Vidya**:

--- Quote ---In the first order "A -> products" reaction, initially [A] = 0.816 M, after 16.0 minutes it is [A] = 0.632 M. rate constant , what is the value of k ?

--- End quote ---

It is a simple question

Initial concentration ,time and final concentrations are given.

Use first order integrated rate law and plug in the given values in the equation.

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