The octet rule states that, in chemical compounds, atoms tend to have

The electron configuration of a noble gas. 
Hope this helps you ! :)

The gas would begin to expand, and eventually the can would burst or explode.

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 !