The rate constants (at 45 ºC) for the anation of [Co(NH3)5H2…

The rate constants (at 45 ºC) for the anation of 3+ with three anions are shown below (Please write your answer on a paper and upload the image fine in the Assignments).  (a) Are these data consistent with a dissociative or associative mechanism?  Briefly explain your answer.  (b) Write the rate equation that is consistent with your choice in (a). (c) Write an equation (reaction) for the rate-determining step of these reactions.    

A metallic element crystallizes in a face-centered cubic str…

A metallic element crystallizes in a face-centered cubic structure.  Let’s assume that the metallic radius of the element is 1.27 Å and the atomic weight is 60.15 g/mol.  Then, the unit cell length is _______ Å and the density of the unit cell is _______ g/cm3.