Measurements show that unknown compound X has the following composition: Element mass %
carbon 40.9%
hydrogen 4.57%
oxygen 54.4%
Write the empirical chemical formula of X.

Copper, silver, aluminum, cobalt, chromium, mercury 

Since there is the same amount of agn03 in both silver chloride and silver nitrate they produce the same amount of moles. therefore silver chloride produces the same amount of silver nitrate, so your answer is 15.0 moles of silver nitrate. i hope this !

D. is the answer hope that you