For the First-Order Reaction Below,the Concentration of Product B After

Multiple Choice

For the first-order reaction below,the concentration of product B after 24.2 seconds is 0.322 M.
If k = 8.75 × 10−² s−¹,what was the initial concentration of A? A → 2B
Rate = k[A]

A) 0.0341 M
B) 0.183 M
C) 1.34 M
D) 2.68 M
E) 29.3 M