(a) Write the binding polynomial for ATP at 298.15K in terms of binding constants in the absence of Mg for application between 3 < pH_c < 14. Assume ideal solutions. 

(b) Convert the binding constants to dissociation constants and give the pK_a,A for each dissociation constant.

(c) Using the binding constants, calculate and plot the vs. pH for ATP between 3 < pH_c< 14. Mark the at the pK_a,A values determined in (b).

(d) Give the fraction of each species at a pH_c = 7.6.