Consider the Equilibrium H₂(g)+ Br₂(g)

question 47

Essay

Consider the equilibrium
H₂(g)+ Br₂(g)
2HBr(g)
To a 20.0 L flask are added 0.100 moles of H₂ and 0.200 moles of HBr.The equilibrium constant for this reaction is 989.Calculate the number of moles of Br₂ in the flask when equilibrium is established.Make any reasonable approximation,clearly stating what that approximation is.

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