The Rate Constant for the Reaction 3A → 4B Is

Multiple Choice

The rate constant for the reaction 3A → 4B is 6.00 × 10⁻³ L mol⁻¹min⁻¹. How long will it take the concentration of A to drop from 0.75 M to 0.25 M?

A) 2.2 × 10 ⁻³ min
B) 5.5 × 10 ⁻³ min
C) 180 min
D) 440 min
E) 5.0 × 10 ² min