How to do the 10th one?
These type of questions always go over my head and I can never understand just what approach and manipulation to try when and this frustrates me can anyone tell what I should do?

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@Dexter
Note for OP
+solved @user1 @user2...
to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.the mass tht comes out 11.13 gm?
im stuck
Eh I think find molar mass of mixture using gas equation, that is only the required mass (22.4L is one mole at STP) (edit: im unsure abt this)
this and then reaction happens so moles change mass stays same, find out final volume from moles and use to get % of gases
Initial moles:
N₂: 1
H₂: 3
NH₃: 0
Change in moles:
N₂: -x
H₂: -3x
NH₃: +2x
Equilibrium moles:
N₂: (1 - x)
H₂: (3 - 3x)
NH₃: 2x
(sharing this because I am not sure if @YAWN is in 12th or not, if in 11th, this may be hard to do without the idea of equilibrium. But it is just stoich at the end of the day.
But
And yes, I used a bot to do the formatting subscripts etc :p
11th sir
haan then this may be a bit hard for him
Ooh I think I got it
Thanks sir
+solved @Sephrina @coolguy. @iTeachChem
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