Week 1 Achieve Problem 2

[KatieFrancisco1F]

For this problem do we assume that the value given for O2 is per 1L or per 1.5L as used in the reaction?

[Symphony Jackson 3K]

I think that you would assume that the O2 is only for 1L. Looking back on the steps I did for this problem, I did not have to worry about the 1.5L part until the end, when I divided all of the concentrations by 1.5.

[Naman Jain 3F]

I believe that you would look at the moles of O2 given as per 1.5L because the volume stays constant throughout, but yes you do not have to worry about the 1.5L till the end.

[Phoebe Ko 3E]

I think the number given in the question varies for each person, but in your case you would assume it's (the given O2 moles)/1.5 L. You would have to account for the volume of the container because concentration=moles/volume, so a change in volume would also change the concentration of a species. I hope this was helpful!

[405566265]

if they give you a volume that is other than 1 L, it's likely you need to use that number to calculate the concentration of O2 in mol/liter, so use o2/1.5

[Ethan_Choi_2I]

You would use the 1.5 L. Another way to look at the problem is to do everything in the ICE table in terms of moles (so you don't have to worry about the volume yet) and then at the end look at the entire system. Since the entire system is still in the 1.5 L container, you would divide the equilibrium moles of each component of the reaction by 1.5 L to find M (molarity or concentration).

[Michelle Jeong 1B]

Since the reaction container is 1.5L that is what you use to find the O2 concentration.

[Rishab_Haldar_3B]

Yes, you would use 1.5L to determine the O2 concentration since the reaction container is 1.5L.

[Nithya Madhu 2L]

Hey,
I am pretty sure you would use 1.5L for O2. The problem provides that the volume of the container the gases are in is 1.5L, so you would have to use that.

[Emily Wan 1l]

You would use the volume of the reaction container. The molarity of O2 can be calculated by using (moles of O2)/ (volume of container in liters).