[填空题]
The relationship between the-u/d io fkbd(d/ 4x *8x am6mthw-8svv concentration1 b.fchqb ;: (cq)kst3 k*biqi of a reactant, A, and the time, for a second-order reaction can be expressed using the equa k ci13q;kqisb)fht(b.b *cq: tion below:
$\frac{1}{[A]}$=kt+$\frac{1}{[A]_0}$
Where [A] is the concentration of reactant A,[A] is the initial concentration of reactant $[A]_0$,t is the time in seconds,and k is a constant.
1.Calculate the gradient of the line and state the correct units.The number=
2.Use the graph to determine $[A]_0$(also known as the initial concentration of A).
$[A]_0$= mol dm$^{-3}$
3.Determine the time at which the concentration of A is equal to an eighth of its initial concentration.
[A]= mol m$^{-3}$
(If you were unable to complete parts (a), and (b), you may use k=0.02, and $[A]_0$ =42).
