Homework Help: chemistry

Posted by Nathaniel on Monday, March 31, 2008 at 11:04pm.

If 1.00 mol each of carbon dioxide and hydrogen is initially injected into a 10.0-L reaction chamber at 986 degrees Celsius, what would be the concentrations of each entity at equilibrium?

CO2(g) + H2(g) „І„і CO(g) + H2O(g) k = 1.60 for 986 degrees Celsius
Heres my work:

C = n/v
= 0.1 mol/L
CO2(g) + H2(g) „І„і CO(g) + H2O(g)
I 0.1 0.1 0 0
C -x -x +x +x
E 0.1-x 0.1-x x x

Keq = [CO][H2O]/[CO2][H2]

1.60 = x(x)/(0.1 -x)(0.1 ЎV x)

This is the part I am stuck with please help thanks a lotѓє

chemistry - DrBob222, Monday, March 31, 2008 at 11:37pm
ok. You have
x*x/(0.1-x)(0.1-x) = 1.60. That is
X^2/(0.1-X)^2 =1.60
Take the square root of both sides.
X/(0.1-X) = sqrt 1.60
X/0.1-X)=1.265
X = 1.265(0.1-X)
X = 0.1265 - 1.265X. Rearrange to
X+1.265X = 0.1265
X = 0.1265/2.265 = 0.0558 which rounds to 0.056 M for CO and H2O.
0.1 - X = 0.1 - 0.0558 = 0.0442 which rounds to 0.044 for CO2 and H2.
I don't know how picky your prof is about significant figures so check these out. Check my work. Check my arithmetic. check it all.
- chemistry - Jessica, Monday, March 31, 2008 at 11:46pm
  It is incorrect, where , sadly I cannot say:(
  - chemistry - DrBob222, Tuesday, April 1, 2008 at 12:01am
    Check the s.f. and key in the right number for s.f. The problem is solved correctly.

Answer this Question

Related Questions

chemistry - I would also like to see Nathaniels work solved:P I have a similar ...
chem - Hydrogen and carbon dioxide react at a high temperature to give water and...
chemistry - If 1.00 mol of iodine and 0.50 mol of chlorine are initially placed ...
Chemistry - An equilibrium mixture contains 0.250 mol of each of the products (...
ap chemistry - Carbon monoxide reacts with oxygen to form carbon dioxide by the...
chemistry - If 0.50 mol of iodine and 0.50 mols of chlorine are initially placed...
Chemistry - The equlibrium constant K, for the reaction, H2 + CO2 <-&...
Chem (repost) - Hydrogen and carbon dioxide react at a high temperature to give ...
Chemistry 104 - A reaction rate doubles when the temperature increases from 0 ...
Chemistry 104 - A reaction rate doubles when the temperature increases from 0 ...

For Further Reading

First Name:
School Subject:
Answer: