For the Second-Order Reaction Below,the Initial Concentration of a Is $2 \mathrm{~A} \rightarrow \mathrm{B} \quad\quad\quad\quad\quad \text { rate }=k[\mathrm{~A}]^{2}$

Multiple Choice

For the second-order reaction below,the initial concentration of A is 1.34 M.If k = 7.61 × 10?⁴ M¹s?¹,what is the concentration of A after 18.3 minutes? $2 \mathrm{~A} \rightarrow \mathrm{B} \quad\quad\quad\quad\quad \text { rate }=k[\mathrm{~A}]^{2}$

A) 0.504 M
B) 0.581 M
C) 0.632 M
D) 0.836 M
E) 1.12 M