[webassignbuddy]

I don't get it...I only got the second one right.

My reasoning was, if you INCREASE the concentration of NH₃, the reactions shifts more to the right, but to maintain equilibrium, the concentration of O₂ would decrease. So [NH₃] > [O₂] is the correct answer for the 2nd one.

But what about the first one and the third one?

[sjb]

I don't get it...I only got the second one right.

My reasoning was, if you INCREASE the concentration of NH₃, the reactions shifts more to the right, but to maintain equilibrium, the concentration of O₂ would decrease. So [NH₃] > [O₂] is the correct answer for the 2nd one.

But what about the first one and the third one?

For point 1. What would the [NH₃] be, relative to the [H₂O] if Kc was small? What if it were large?

For point 3. What does the balanced equation tell you about the relative amounts of N₂O₃ and H₂O

[Borek]

This is only about stoichiometry, not about equilibrium shifts and whatnot.

[webassignbuddy]

I don't get it...I only got the second one right.

My reasoning was, if you INCREASE the concentration of NH₃, the reactions shifts more to the right, but to maintain equilibrium, the concentration of O₂ would decrease. So [NH₃] > [O₂] is the correct answer for the 2nd one.

But what about the first one and the third one?

For point 1. What would the [NH₃] be, relative to the [H₂O] if Kc was small? What if it were large?

For point 3. What does the balanced equation tell you about the relative amounts of N₂O₃ and H₂O

Wait...but what is Kc??

[Borek]

Don't worry about Kc (which is an equilibrium constant BTW). It is completely irrelevant to the question. Think about stoichiometry alone.

[webassignbuddy]

Don't worry about Kc (which is an equilibrium constant BTW). It is completely irrelevant to the question. Think about stoichiometry alone.

Would the first one be equal?

2NH₃ has 6 H's. The same as 3H₂O

[webassignbuddy]

Don't worry about Kc (which is an equilibrium constant BTW). It is completely irrelevant to the question. Think about stoichiometry alone.

Actually this is the answer.

[NH3] ? [H2O]
[NH3] > [O2]
[N2O3] <  [H2O]

But why??

[ramboacid]

Think about the coefficients. If the lefthand side is 2NH₃ + 3O₂, which compound is being used up more than the other? Same with the products side, N₂O₃ + 3H₂O; which compound is being produced more than the other?

[sjb]

This is only about stoichiometry, not about equilibrium shifts and whatnot.

Whilst it is for 2 & 3, I'm not sure it isn't for part 1? Can you elaborate, please?

[magician4]

without the knowledge of K , (1) cant be answered, and hence deserves "?"

regards

Ingo