/sci/ - Science & Math

Chem1A fag here, need some help with homework. I've been stuck for hours on the last two problems.

1) At 2200°C, K = 0.050 for the following reaction.

N2(g) + O2(g) <-> 2 NO(g)
What is the partial pressure of NO in equilibrium with N2 and O2 that were placed in a flask at initial pressures of 0.69 atm and 0.17 atm, respectively?

____ atm


2) At a particular temperature, K = 2.0 10-6 mol/L for the following reaction.

2 CO2(g) reverse reaction arrow 2 CO(g) + O2(g)
If 2.9 mol CO2 is initially placed into a 5.3-L vessel, calculate the equilibrium concentrations of all species.

[CO2] .54 M
[CO] ___ M
[O2] ___ M

Any help is greatly appreciated. Thanks in advance.