At a Particular Temperature,N₂O₅ Decomposes According to a First-Order Rate $\times$

Multiple Choice

At a particular temperature,N₂O₅ decomposes according to a first-order rate law with a half-life of 3.0 s.If the initial concentration of N₂O₅ is 1.0 $\times$ 10¹⁶ molecules/cm³,what will be the concentration in molecules/cm³ after 16.1 s?

A) 2.4 $\times$ 10¹⁴
B) 3.3 $\times$ 10¹
C) 1.0 $\times$ 10¹⁶
D) 1.4 $\times$ 10¹⁴
E) 2.3 $\times$ 10^-1