Problem: For the reaction M2 + N2 ⇌ 2MN, scene A represents the mixture at equilibrium, with M black and N orange. If each molecule represents 0.10 mol and the volume is 1.0 L, how many moles of each substance will be present in scene B when that mixture reaches equilibrium?

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FREE Expert Solution

Equilibrium reaction: M2 + N2 ⇌ 2MN


When dealing with equilibrium and Kc:

Kc → equilibrium units are in molarity 
Kc is an equilibrium expression:

Kc=productsreactants=[MN]2[M2][N2]


Solve for Kc using diagram A:


Kc=0.0420.020.02Kc=1.6×10-34.0×10-4

Kc = 4.0


ICE Chart for diagram B:

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Problem Details

For the reaction M2 + N2 ⇌ 2MN, scene A represents the mixture at equilibrium, with M black and N orange. If each molecule represents 0.10 mol and the volume is 1.0 L, how many moles of each substance will be present in scene B when that mixture reaches equilibrium?