# Stion 13 of 18 > The rate constant for this first-order reaction is 0.130 s-at 400...

###### Question:

stion 13 of 18 > The rate constant for this first-order reaction is 0.130 s-at 400 °C. A products How long, in seconds, would it take for the concentration of A to decrease from 0.800 M to 0.270 M? AAGD E R T Y U T O P

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