Kinetics - Rate of a reaction - Reaction order
A first order reaction is a reaction in which the rate is proportional to the concentration of only one reactant.
Answer:
We have the following reaction and reaction rate:
[tex]\begin{gathered} A\rightarrow B \\ \\ rate:\text{ 0.0385}\frac{M}{s} \end{gathered}[/tex]The rate of the reaction is expresed as:
[tex]rate=-\frac{\lbrack A_{final}\rbrack-\lbrack A_{initial}\rbrack}{\Delta t}[/tex]In this case:
[tex]\begin{gathered} \lbrack A_{initial}\rbrack=0.95M \\ \Delta t=34.01s \end{gathered}[/tex]So now we calculate the final concentration of A:
[tex]\begin{gathered} \lbrack A_{final}\rbrack=\lbrack A_{initial}\rbrack-rate*\Delta t \\ \\ \lbrack A_{final}\rbrack=0.95M-0.0385\frac{M}{s}*34.01s \\ \\ \lbrack A_{final}\rbrack=0.3594M \end{gathered}[/tex]So the final concentration of A is 0.3594M.
