Molecular iodine, I2(g), dissociates into iodine atoms at 625 K with a first-order rate constant of 0.271 s−1 .

If you start with 0.045 M of I2 at this temperature, how much will remain after 2.56 ss assuming that the iodine atoms do not recombine to form I2?        

Express the molarity to two significant figures.

[I2]2.56s=