Homework Help: Chemistry

Posted by Michael on Sunday, May 10, 2009 at 11:24pm.

Calculate the equilibrium concentration of each compound if 0.340 moles of HI are placed in a 5.90 liter container at 520°C. Kc = 0.170 for the reaction at this temperature.

soo i tried doing this by setting up an ICE table

and finding what x equaled buuuut it didnt work..

please help! thanks

Chemistry - DrBob222, Sunday, May 10, 2009 at 11:26pm
The ICE table should work. Post your work and I'll find your error.
Chemistry - Michael, Monday, May 11, 2009 at 12:04am
sorry it was for this problem

Calculate the equilibrium concentration of each compound if 2.10 moles of CO2 and 3.70 moles of H2 are placed in a 2.90 liter container at 300°C. Kc = 1.90 for the reaction at this temperature.

okay so i did

CO2(g) + H2(g) = CO(g) + H2O(g)
.724-x..1.276-x......+x......+x

x^2/(.724-x)(1.276-x) =1.9

and i have

Quad form:

A=.9
B=-3.8
C=1.75522
Answer: 3.694=x
Chemistry - DrBob222, Monday, May 11, 2009 at 12:48am
I get the same answer and the coefficients are the same as yours for one root but 3.69 cant be correct because you had only 0.724 initially. For the other root I calculated 0.528 but I didn't check my figures. That should be the answer to the problem. Check me out on that.

Answer this Question

Related Questions

Chemistry-w/addition - At elevated temperatures, SbCl5 gas decomposes into SbCl3...
Chemistry - At elevated temperatures, SbCl5 gas decomposes into SbCl3 gas and ...
chemistry - A(g)+ B(g) <---> C(g) + D(g) Kc= 144. If .4 mol of A ...
chemistry - A(g)+ B(g) <---> C(g) + D(g) Kc= 144. If .4 mol of A ...
chemical equilibrium - At a certain temperature, Kc = 0.914 for the reaction NO2...
Chemistry - Need help in AP chemistry on Equilibrium When heated, hydrogen ...
ap chemistry - At a certain temperature, the equilibrium constant Kc is 0.154 ...
chemistry - Determine the concentration at equilibrium if you start with 2.3 ...
AP CHEMISTRY - An experiment was carried out to determine the value of the ...
chemistry - a chemist puts 6 moles of nitrogen gas and 7 moles hydrogen gas into...

For Further Reading

First Name:
School Subject:
Answer: