A solution contains a total concentration of molecules [Altot of 5.345 x 10^-5 mol/l and a total concentration of molecules [B]tot of 1.245 x 10^-4 mol/l. The dissociation constant for the complex AB is 2.208 x 10^-6 Required:
Determine the equilibrium concentration [AB] of the heterodimeric complex AB formed by the molecules A and B in the solution.

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

Determine the empirical formula for succinic acid that is composed of 40.60% carbon, 5.18% hydrogen, and 54.22% oxygen.

  the mississippians were considered to be  horticulturalists, which means they were