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 2 years ago
In the first order reaction A. products [A]= 0.826M initially and 0.634 M after 15.0 min. What will [A] be after 2.7 h? ( t1/2= 39.3 min)
 2 years ago
In the first order reaction A. products [A]= 0.826M initially and 0.634 M after 15.0 min. What will [A] be after 2.7 h? ( t1/2= 39.3 min)

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aaronq
 2 years ago
Best ResponseYou've already chosen the best response.1find the decay constant, k: \[t _{1/2}=\frac{ \ln2 }{ k }\] then use the exponential decay formula: \[A=A _{0}e ^{kt}\]

S
 2 years ago
Best ResponseYou've already chosen the best response.0somehow this answer didn't work for me

aaronq
 2 years ago
Best ResponseYou've already chosen the best response.1did you convert 2.7 hours to minutes?

S
 2 years ago
Best ResponseYou've already chosen the best response.0Worked ! probably i did something wrong in calculations. Did you use the same formula ?
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