Topscore question

This forum made possible through the generous support of SDN members, donors, and sponsors. Thank you.

_veo_

Member
10+ Year Member
7+ Year Member
15+ Year Member
Joined
May 11, 2006
Messages
212
Reaction score
0
Test 1, question 56, general chem..

When 14.250 moles of PCL5 fas is placed in a 3.00 liter container and comes to equilibrium at constant temp, 40% of the PCL5 decomposes according to the equation:

PCL5 (g)-------> PCL3 (g) + CL2 (g)

What is the value of the Kc for this reaction?

I get 1.896^2/4.75, and the answer says (1.896)^2/2.854

Where does the 2.854 comes from? I have no clue 😕
 
Top