Calculate the equilibrium concentration?

label Chemistry
account_circle Unassigned
schedule 1 Day
account_balance_wallet $5

COCl2(g) --> CO(g) + Cl2(g)  Kc = 8.3 x 10^-4 (360 degrees celcius). Calc equilibrium concentration for all chemicals when each amount of phosgene decomposes and reaches equilibrium in a 10.0 L flask: (a) 5.00 mol of COCl2 (b) 0.100 mol of COCl2

Oct 20th, 2017

Let x represent the change I concentration.  Assuming 2x << 5.00 mole we have

(a) K = x^2/ 5.00  so x^2 =. 8.3 x 10^-4 / 0.5.             Note 0.5 is the conc. because 5.0 mole / 10.0 L

Therefore x = sqrt ( 8.3 x 10^-4) /0.5

                x=  0.041M

(b).  K = (x) (x)/( 0.01- x)^2                                           Note 0.01 is the conch. Because 0.1 mole/10.0 L

    Therefore x = sqrt( K/ (0.01 -x)^2

                        = sqrt ( 0.00083/ (0.01-x)^2

                   x^2 = 0.00083/0.0001- 0.02x + x^2

By trial and error x=. 0.0015 M

Feb 3rd, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
Oct 20th, 2017
...
Oct 20th, 2017
Oct 21st, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer