15-8 First Order Integrated Rate Law

Consider the first order reaction

Br₂-----> 2Br

1. What is the rate constant if it takes 60 second for a 0.50 M mixture to decompose to 0.25M?

2. How long does it take for the reaction in question 1 to decompose to 0.10M?

3. How long does it take for the reactant in question 1 to decompose to 15%?

4. How long does it take for 15% of the reactant in question 1 to be consumed?

5. What is [Br₂] of a 0.80M [Br₂] solution after 3 minutes?

6. Calculate the initial [Br₂] if [Br₂] =0.005M after 10 minutes?