Suppose we have the case of negative externalities market failure. Given public choice incentives we can infer:

In the reaction shown above, the concentration of H2S went from 0.037 M to 0.022 M after 83 seconds. What is the change in the concentration of H2S in M/min?  

Use the Henderson-Hasselbalch equation to find the concentration (in mM) of potassium acetate in a buffer containing 150 mM acetic acid if the pH is 4.98.  Ka = 1.8 x 10-5. If no work is submitted for this problem, there will be a penalty of 50%. This means a correct answer for a 5 pt problem with no work is worth a maximum of 2.5 pts.

What is the solubility (in mg/L) of PbSO4 (303.3 g/mol) in a solution that is already 3.4 M SO42-? Ksp = 6.3 x 10-7. Note: Assume that the change in is negligible. If no work is submitted for this problem, there will be a penalty of 50%. This means a correct answer for a 5 pt problem with no work is worth a maximum of 2.5 pts.

At 27 

**Questions 1-3 deal with the same system.** CH4 (g) + 2 H2S (g) 

In the reaction shown above, the concentration of H2S went from 0.037 M to 0.022 M after 83 seconds. What is the change in the concentration of H2S in M/min? (NOTE: Enter rate change as a positive quantity.)  

The time for one cycle is ——–.

—— is always equal to or greater than SPTA.

Solve the exponential equation algebraically. Approximate the result to three decimal places. ​