Posted by Anonymous on Sunday, April 8, 2012 at 4:50pm.
At 55C, the K for the reaction: 2NO2(g) <--> N2O4 is 1.15
a) write the equilibrium expression
b) calculate the concentration of N2O4(g) present in equilibrium with 0.50 mole of NO2
Please help and explain
Chemistry - DrBob222, Sunday, April 8, 2012 at 4:59pm
Don't you know Keq expression? products/reactants with coefficients as exponents.
b. Substitute 0.40 mol for NO2 into Keq and solve for N2O4.
Chemistry - Anonymous, Sunday, April 8, 2012 at 5:13pm
Is this right?
a) kc= [N2O4]/[NO2]^2
B) I still can't figure it out :( please help
Chemistry - DrBob222, Sunday, April 8, 2012 at 5:29pm
Frankly I don't know how to answer the question. Is this Kc or is it Kp? The problem calls it Keq and gives moles. Moles can't go in the Keq expression. It must be molarity for Kc or partial pressure for Kp. With no volume given mols can't be converted to M nor to pressure. Is there more to the problem or did you post an edited version? The Kc expression you wrote is perfect.
Chemistry - Anonymous, Sunday, April 8, 2012 at 5:31pm
Okay thank you
Answer This Question
More Related Questions
- CHEMISTRY - A chemist studying the equilibrium N2O4(g)<----->2NO2(g) ...
- Chemistry - Nitrogen dioxide, NO2, dimerizes easily to form dinitrogen tetroxide...
- chemistry - Can you please check if I came up with the right answer for this ...
- chem 12 - 1.00 mol of N2O4 and 1.00 mol of NO2 are placed in an 800 mL container...
- chemistry - Kc=5.85x10^-3 at 25 degrees C for the reaction N2O4(g)<-->2NO2...
- Chemistry - Do you know how to set up the ICE? That's what you need to do. If ...
- AP Chemistry - Given: N2O4 (g) « 2NO2 (g) @ 25 degrees celcius, Kc is 5.84 x 10...
- chemistry - The following system is at equilibrium with [N2O4] = 0.55 M and [NO2...
- chemistry - A 1.00 mol sample of N2O4 (g) is placed in a 10.0 L vessel and ...
- Chem - The initial concentration for the compounds involved in the reaction ...