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# Equilibrium Moles Help

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Why bother with a post grad? Are they even worth it? Have your say! 26-10-2016
1. How would I get the eqm moles for this? I calculated 0.5 mol for 2W and 0.25 mol for X, but my teacher told me it was 1 mol. I don't understand at all and I'd appreciate some help
2. (Original post by doglover123)
How would I get the eqm moles for this? I calculated 0.5 mol for 2W and 0.25 mol for X, but my teacher told me it was 1 mol. I don't understand at all and I'd appreciate some help
2W + X <==> 2Y

..3......1...........0
......................0.5

if 0.5 of Y have been formed then 0.5 of W have reacted therefore there are 2.5 of W left.

0.5 of W react with 0.25 of X therefore there are 0.75 of X left at equilibrium.

3. (Original post by charco)
2W + X <==> 2Y

..3......1...........0
......................0.5

if 0.5 of Y have been formed then 0.5 of W have reacted therefore there are 2.5 of W left.

0.5 of W react with 0.25 of X therefore there are 0.75 of X left at equilibrium.

Yeah, he was wrong. I figured it out eventually. It's just annoying bc i spent hours trying to work out where i went wrong. Thank you!

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