gen chem

posted by .

At 2273K, equilibrium constant for the reaction

2NO(g)<->N2(g)+O2(g)
Kc=2.4x10^3

What would be equilibrim concentration of N2, if initial concentration of NO was 0.1160M?

  • gen chem -

    Have you tried setting up an ICE chart? That's the obvious way to go.

  • gen chem -

    yes I did, but im still not getting the right answer.

    I got .1136 which is not the correct answer.

  • gen chem -

    what do you have for
    initial:


    change:

    equilibrium

  • gen chem -

    2NO <-> N2 O2
    initial .116 0 0
    change -x +x +x
    equil .116-x x x

  • gen chem -

    Did you look at your post from last night where we arrived at K = something x 10^-192? That problem didn't ask for K, it asked for pK. I'll get back on the current problem.

  • gen chem -

    Make it
    initial:
    NO = 0.1160
    N2 = 0
    O2 = 0

    change:
    NO = -2x
    N2 = x
    O2 = x

    equilibrium:
    NO = 0.1160 - 2x
    N2 = x
    O2 = x
    and solve for x.

  • gen chem -

    yes, I figured that one out. Thanks so much for the help!

  • gen chem -

    that works! thank you so much!!

  • gen chem -

    I'm curious about the problem last night. Was the pK about 192?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    If the initial concentration of NO(g) is 6.745 mol/L, calculate the % of NO(g) left over after the reaction reaches equilibrium according to the balanced equation. The value of Kc at 2400 K is 400.00. The initial concentration of the …
  2. chemistry

    At room temperature the equilibrium constant Kc for the reaction: 2NO(g)=N2(g)+O2(g) is 1.4x10^30. In the atmosphere at room temp. the concentration of nitrogen gas is 0.33 mol/L and the concentration of oxygen gas is about 25% that …
  3. chemistry

    Hey Guys so I have this problem with ICE tables that is extremely confusing for me so I would love some help on it! At a Certain Temperature, the equilibrium constant for the reaction of NO with Cl2 is 6250. If the initial concentration …
  4. chemistry

    At 2273 K the equilibrium constant for the reaction 2 NO(g) « N2(g) + O2(g) KC = 2400 What would be the equilibrium concentration of N2 if the initial concentration of NO was 0.1778 M?
  5. chemistry

    A mixture of 0.100 mol NO, 0.200 mol H2 and 0.0800 mol N2 were placed in a 2.00L reaction vessel, heated, and allowed to come to equilibrium conditions. At equilibrium, the molar concentration of N2 was 0.0500 mol/L. Calculate Kc for …
  6. Chemistry

    At 2000 ∘C the equilibrium constant for the reaction 2NO(g)←−→N2(g)+O2(g) is Kc=2.4×103. The initial concentration of NO is 0.220M . What is the equilibrium concentration of NO?
  7. Chemisty

    For the reaction: 2NO(g) + H2(g) <=> N2O(g) + H2O(g) + energy Write the equilibrium constant expression for the reaction. This reaction takes place at 25°C. At this temperature the concentration of NO is found to be 1.75 mol/L, …
  8. Chemisty

    For the reaction: 2NO(g) + H2(g) <=> N2O(g) + H2O(g) + energy Write the equilibrium constant expression for the reaction. This reaction takes place at 25°C. At this temperature the concentration of NO is found to be 1.75 mol/L, …
  9. Science

    For the reaction: 2NO(g) + H2(g) <=> N2O(g) + H2O(g) + energy Write the equilibrium constant expression for the reaction. This reaction takes place at 25°C. At this temperature the concentration of NO is found to be 1.75 mol/L, …
  10. Chemistry

    For the reaction: 2NO(g) + H2(g) <=> N2O(g) + H2O(g) + energy Write the equilibrium constant expression for the reaction. I wrote: [N2O][H2O] / [NO]2 [H2] This reaction takes place at 25°C. At this temperature the concentration …

More Similar Questions