Chapter 9, Problem 27QAP

“Smelling salts,” which are used to revive someone who has fainted, typically contain ammonium carbonate, ${\left({\text{NH}}_4\right)}_2{\text{CO}}_3$. Ammonium carbonate decomposes readily to form ammonia, carbon dioxide, and water. The strong odor of the ammonia usually restores consciousness in the person who has tainted. The unbalanced equation is

:math> ( NH 4 ) 2 CO 3 ( s ) → NH 3 ( g ) + CO 2 ( g ) + H 2 O ( g )

lculate the mass of ammonia gas that is produced if 1 .25 g of ammonium carbonate decomposes completely.