Answer:
0.053 M is the concentration of X after 196 seconds.
Explanation:
Initial concentration of the X = [tex][A_o]=1.0 M[/tex]
Time taken by the sample, t = 196 s
Final concentration of the X after t = [A] =?
Rate constant of the reaction = k = [tex]1.50\times 10^{-2} s^{-1}[/tex]
Formula used :
[tex][A]=[A_o]\times e^{-kt}[/tex]
where,
Now put all the given values in this formula, we get
[tex][A]=[1.0M]\times e^{-1.50\times 10^{-2} s^{-1}\times 196 s}[/tex]
[tex][A]=0.053 M[/tex]
0.053 M is the concentration of X after 196 seconds.
