The protein calcineurin binds to the protein calmodulin with an association rate of 8.9x10^3 M^-1s^-1 and an overall dissociation constant, Kd, of 10nM. calculate the dissociation rate, Kd, including appropriate units.

The amount of iron in ore can be quantitatively determined by titrating a solution of the unknown with a standard solution of dichromate, cr2o72−. the net ionic equation is 6fe2+(aq)+cr2o72−(aq)+14h+(aq)→6fe3+(aq)+2cr3+(aq)+7h2o(aq) part a the titration of 25.0 ml of an iron(ii) solution required 18.0 ml of a 0.230 m solution of dichromate to reach the equivalence point. what is the molarity of the iron(ii) solution?