Question #fa88a
2 Answers
The equilibrium constant for your reaction will be 0.0667.
The first thing you need to do is determine the initial concentration of sulfur trioxide placed in the flask. To do that, use the compound's molar mass to determine how many moles you're working with
The initial concentration will then be
Use an ICE table to determine what the expression of
I......0.75................0...............0
C....(-
E...0.75-2x............2x...............x
By definition, the equilibrium constant will be
You know that the equilibrium concentration of oxygen is 0.150 M, so you can replace
Mass
So no. moles
Initial moles:
If
We are told
So
So moles at equilibrium
So to get equilibrium concentrations we divide each by the total volume of 2L.
So equilibrium conc.s