What is the ratio of almc005-1.jpg ions to smc005-2.jpg ions in a neutral compound?

The complete question is:
What is the ratio of Al3+ ions to S2- ions in a neutral compound?

Call x the number of atoms of Al(3+) and y the number of atoms of S(2-). The ratio of Al(3+) to S(2-) is x/y

Then, the neutral condition implies  x(3+) + y(2-) = 0

=> 3x = 2y
=> x/y = 2/3

And the ratio is 2/3

2/3
 

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 !