Thursday
April 17, 2014

Homework Help: Chemistry

Posted by Chris on Friday, April 27, 2007 at 12:52pm.

MF17083:For the following reaction find Kp at 25C and indicate whether Kp should increase or decrease as the temperature rises. NH4HS(s) <===> H2S(g) + NH3(g); DH = 83.47 kJ and DG = 17.5 kJ at 25C.
- A. B. C. D. E. F. Kp =
- A. B. C. D. E. F. Kp ________ as the temperature rises.

Choices:
A. 0.00086
B. 1200
C. 0.0012
D. increases
E. decreases
F. remains the same


I believe is Kp=0.0012 and Kp increases as the temperature rises can somebody verify that I am correct.



I found 8.6 x 10^-4 for Kp. I used
delta Go = -RT ln K.
delta Ho indicates the reaction is endothermic; therefore, an increase in T will move the reaction to the right, increaseing both pNH3 and pH2S so Kp will increase.
Check my thinking.

if a chemical has the pH of 2 what would be the [H
+]

pH = - log(H^+)
2=-log(H^+).
(H^+)= ??

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry, plz check work - NH3+H2S-->NH4HS <-- Kc=400 at 35 Celsius what ...
CHEM HELP! - NH4HS<-->NH3+H2S What is the minimum mass of NH4HS that must ...
chemistry - Ammonium bisulfide, NH2HS, forms ammonia NH3, and hydrogen sulfide, ...
chemistry - Heterogenous equilibrium of ammonium bisulfide. Ammonium bisulfide ...
chemistry - What is the pressure change for the reaction below at 25 C in the ...
chemistry - A sample of NH4HS (s) is placed into a 2.65 L flask, containing 0....
chemistry - A sample of NH4HS (s) is placed into a 2.65 L flask, containing 0....
Chem - Which direction will the following reaction in a 5.0 L flask proceed if ...
pressure change - What is the pressure change for the reaction below at 25 C in ...
Chemistry - Kp for the following reaction is 0.16 at 25C. 2 NOBr(g) (reverse ...

Search
Members