CHM 1301 Lecture Notes - Lecture 15: Chemical Weapon, Phosgene

• School: University of Ottawa
• Department: Chemistry
• Course: CHM 1301
• Professor: Rashmi Venkateswaran

Document Summary

Textbook problem taken up in class october 17th. Phosgene is a potential chemical warfare agent that is now outlawed by international agreement. It decomposes by the reaction cocl2(g) co(g); kc = 8. 3 x 10-4 at 360 degrees c. Calculate [co], [cl2], and [cocl2] when the following amounts of phosgene decompose and reach eqbm in a 10l flask. Large k >104 | grey area: 10-4 < k < 104 | small k <10-4 (a) 5. 00 mol cocl2 (b) 0. 100 mol cocl2 (a) -look at initial concentration and total amount. X should be the same as the result for the quadratic formula. [cocl2] (0. 500-x) (b) -changing the initial concentration changes the value of x. Different values you can make approximation when x is really small. Kc = 8. 3 x 10-4 = x2 assume that x is much more than 0. 500, therefore, 500-x = (cid:1004). 5(cid:1004)(cid:1004)