Would anybody happen to know..."how many grams of solid antimony(III) chloride gas can be produced from 3570 cm^3 of chlorine gas at STP reacting with an excess of antimony?" [21:24] Antimony is Sb, by the way, with a molar mass of 121.78 [21:24] Chlorine has a molar mass of 35.45 [21:24] And antimony(III) chloride is SbCl3 [21:24] --> Kevin_Kofler_ has joined this channel (~Kevin_Kof@FQ-28C8F8D6.vie.surfer.at). [21:25] I'm going 3.57/22.4/3*(212.76+3*35.45) [21:25] which gives me 12.12 [21:25] approximately [21:25] when the answer is 25.4