Chapter 3, Problem 3.120MP

Ammonium nitrate, a potential ingredient of terrorist bombs, can be made non-explosive by addition of diammonium hydrogen phosphate, ${\left({\text{NH}}_{\text{4}}\right)}_{\text{2}}{\text{HPO}}_{\text{4}}$ . Analysis of such a ${\text{NH}}_{\text{4}}{\text{NO}}_{\text{3}}-{\left({\text{NH}}_{\text{4}}\right)}_{\text{2}}{\text{HPO}}_{\text{4}}$ mixture showed the mass percentof nitrogen to be 30.43%. What is the mass ratio of the twocomponents in the mixture?