Chapter 1, Problem 27P

Compute the relative molecular masses of the following compounds on the ${}^{\text{12}}\text{C}$ scale:

(a) ${\text{P}}_{\text{4}}{\text{O}}_{\text{1}0}$     (b) BrCl

(c) $\text{Ca}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}$  (d) ${\text{KMnO}}_{\text{4}}$

(e) ${\left({\text{NH}}_{\text{4}}\right)}_{\text{2}}{\text{SO}}_{\text{4}}$