Answer:
2.3 minutes
Step-by-step explanation:
The half life of any reaction is the amount of time it takes to consume half of the starting material.
The Half life of a reaction is usually constant for that particular material.
From the question it takes 2.3 min to cut the concentration in half to a concentration of 0.5M
How much time it would then take to cut the concentration in half again, in this case from 0.50 M to 0.25 M?
It's still going to take 2.3 minutes which is the half life.