Write the expression for K for the acid reaction below. HF(aq) + H2O(l) ↔ F-(aq) + H3O+(aq) K=[F-][H3O+] / [HF] K=[HF] /

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Write the expression for K for the acid reaction below.
HF(aq) + H2O(l) ↔ F-(aq) + H3O+(aq)
K=[F-][H3O+] / [HF]
K=[HF] / [F-][H3O+]
K=[F-][H3O+] / [HF][H2O]
K=[HF][H2O] / [F-][H3O+]
K= [F-] / [HF]
For the following reaction, 2 SO3(g) ↔ 2 SO2(g) + O2(g), the equilibrium constant, Kp, is 1.32 at 627ºC. What is the equilibrium constant for the reaction below?
SO3(g) ↔ SO2(g) + 1/2 O2(g)
0.660
1.15
1.32
1.74
2.64
We place 3.2 mol PCl5 in a 2.0 L flask and allow it to reach equilibrium at a given temperature. What is the final concentration of Cl2 in the flask?
PCl5(g) ↔ PCl3(g) + Cl2(g) Kc = 0.47
0.11 M
0.27 M
0.32 M
0.55 M
0.66 M