In the first order reaction, A->2B, it takes 125 seconds for 20.0 percent of a sample of A to react. What is the value of the rate constant, k? (to 3 /s significant figures) How long in seconds would it take until 10.0 percent of the original sample of A remained? S

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Question 14:
In the first order reaction, A->2B, it takes
125 seconds for 20.0 percent of a sample
of A to react.
What is the value of the rate constant, k? (to 3
significant figures)
/s
How long in seconds would it take until 10.0
percent of the original sample of A remained?
S
Transcribed Image Text:Question 14: In the first order reaction, A->2B, it takes 125 seconds for 20.0 percent of a sample of A to react. What is the value of the rate constant, k? (to 3 significant figures) /s How long in seconds would it take until 10.0 percent of the original sample of A remained? S
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