Question

PLEASE HELP!!!! 20 MINS LEFT IM DYING PLS HELP

There are 5.3 moles of n2o4 and 2.3 moles of no2 in a 5 liters container. Find the Kc for this reaction:
n2o4 ⇋ 2no2​​

Answer 1

Kc = 0.20

Step-by-step explanation:

N₂O₄ ⇄ 2NO₂

moles 5.3mol 2.3mol

Vol 5L 5L

Molarity 5.3/5M 2.3/5M

= 1.06M = 0.46M

Kc = [NO₂]²/[N₂O₄] = (0.46)²/(1.06) = 0.1996 ≅ 0.20