Textbook problem 5.57 [ENDORSED]

[Jazlyn Romero 1I]

The two air pollutants SO3 and NO can react as follows: SO3 (g) +NO(g) <--> SO2(g) +NO2(g).
(B) Given that at a certain temperature k=6.0*10^3, calculate the amount (in moles) of NO that must be added to a 1.00-L vessel containing 0.245 mol SO3(g) to form 0.240 mol SO2(g) equilibrium.

Hi, I was struggling on how to approach this question and whether or not we would need to use an ICE table. Any help would be appreciated, thanks!

[Andrew Wang 1C]

How I did it was by starting with an ICE table and filling in values for what we know, and using variables for what we don't know. Although it's a bit different for this problem since the variable isn't in the "C" row. This should leave you with one unknown variable, which you can solve for by using the equilibrium constant given.

Hope this helps!

[Shanna Yu 1C]

Hi!

Andrew answered your question well, as you do need an ICE table, but here’s a (kinda messy) step-by-step I did for you, just in case you need any further help!

https://imgur.com/2zMypSI

[Jazlyn Romero 1I]

Thank you both so much! So helpful!!

[Shanna Yu 1C]

Thank you both so much! So helpful!!

No problem! |>