15-9 Second Order Integrated Rate Law

Consider the second order reaction

2NOBr(g) --> 2NO(g) + Br₂(g)

1. What is the rate constant if it takes 75 seconds for a 0.90M 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 25%?

4. How long does it take for 25% of the reactant in question 1 to be consumed?

5. What is [NOBr] of a .85M [NOBr]solution after 3 minutes?

6. Calculate the initial [NOBr] if [NOBr]=0.0080M after 15 minutes.