1. For the O-17 exchange between H3PO4 and water the rate equation is:

-d[H3PO3O*]/dt = k_H[H+] [H3PO3O*]

Show that at constant H⁺ that the reaction is psuedo first order and that the first order rate constant is equal to k_H[H+].

At 100 ^oC and [H+] = 0.76 M the half life for the reaction is 29 hrs. What is the second order rate constant M^-1s^-1.

2. text 20.18

3. text 20.19