Use the equilibrium constants from the component reactions to calculate the equilibrium constant for the total reaction.
K
1
+
K
2
+
K
3
K
1
X
K
2
X
K
3
K
1
–
K
2
–
K
3
K
1
+
K
2
–
K
3
K
1
X
K
2
/
K
3