[natalie_2006]

 A compound containing titanium (Ti) and chlorine is analyzed by converting all of the titanium into 1.20g of TiO2 and all of the chlorine into 6.45g of AgCl. What is the simplest formula for the original compound?

molar mass of TiO2 = 79.9
moles of TiO2 = 1.20g / 79.9
= 0.0150 mol

AgCl molar mass = 143.3
moles of AgCl = 6.45/143.3
= 0.0450 mol

So then do I  take each one and make a ratio?

moles of Ti = 0.0150 mol
O = 0.0300 (because it's 0.0150 x 2)
Cl = 0.0450

therefore diving each by 0.0150 the lowest one

so the simplest formula is TiCl3

[Borek]

OK