[wadi]

this equilibrium problems drive me ..please help.
A certain quantity of HI is introduced to a 1.0 l reaction vessel at a certain temperature
 H2 (g) + I2 (g) <==> 2HI (g)
When equilibrium is reached there are 2.5 moles of I2 present. How many moles of Hi were introduced orginally?

[Yggdrasil]

Do you know the equilibrium constant for the reaction?

[studioussam]

this equilibrium problems drive me ..please help.
A certain quantity of HI is introduced to a 1.0 l reaction vessel at a certain temperature
 H2 (g) + I2 (g) <==> 2HI (g)
When equilibrium is reached there are 2.5 moles of I2 present. How many moles of Hi were introduced orginally?

give me the equilibrium constant K then ill solve it

[moni]

K = 5.0

[moni]

thank u for help