1 B1) The isotope phosphorus-32 undergoes radioactive decay emitting a beta particle and has a half-life of 14.3 days. It is often used for biochemical reactions.

(a) How long will it take for a sample of phosphorus-32 to be 35.6% decomposed in a solution?

b) If 10.0 mL of a solution containing phosphorus-32 is a 8.0 X 105 M solution of K, 2PO4, what will be the initial rate activity of the sample, in disintegrations per second of phosphorus-32, for the solution?

1 B2) Which of the following are affected by the addition of a catalyst to the reaction? Indicate ALL that apply!
(1) The half-life of the reaction
(2) The final concentrations of reactants and products
(3) The energy of activation
(4) The AH for the reaction
(5) The time required to reach equilibrium (6) The orders of the reaction
(7) None of the responses (1-6) would apply