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Consider the following reaction.
2H2S(g)⇌2H2(g)+S2(g)
An equilibrium mixture of this reaction at a certain temperature was found to have [H2S]= 0.552M , [H2]= 2.34×10−2M , and [S2]= 7.14×10−3M . What is the value of the equilibrium constant at this temperature?


An equilibrium mixture of the following reaction was found to have [SbCl3]= 0.115M and [Cl2]= 0.0268M at 248 ∘C.What is the concentration of SbCl5?
SbCl5(g)⇌SbCl3(g)+Cl2(g)
Keq= 5.4×10−4 at 248 ∘C

Consider the following reaction.
H2(g)+I2(g)⇌2HI(g)
Complete the following table. Assume that all concentrations are equilibrium concentrations in moles per liter, M.
T(∘C)    [H2]    [I2]    [Hl]    Keq
25    0.325    0.468    0.0912    _____
340    _____    0.0505    0.427    9.6
445    0.0525    0.0448    _____    46.2
Complete the second row of the table.
Complete the third row of the table.