Download Chemical Equilibria: Calculating Constants & Missing Concentrations and more Quizzes Chemistry in PDF only on Docsity!
Calculate the equilibrium constants for the following equilibria.
1) N 2 (g) + 3H 2 (g) W 2NH 3 (g)
P N2 = 0.60 atm P H2 = 0.42 atm P NH3 = 0.11 atm
K = 0.
2) 2SO 2 (g) + O 2 (g) W 2SO 3 (g)
P SO2 = 0.344 atm P O2 = 0.172 atm P SO3 = 0.056 atm
K = 0.
3) 2NH 3 (g) W N 2 (g) + 3H 2 (g)
P N2 = 0.60 atm P H2 = 0.42 atm P NH3 = 0.11 atm
K = 3.
4) 2SO 3 (g) W 2SO 2 (g) + O 2 (g)
P SO2 = 0.344 atm P O2 = 0.172 atm P SO3 = 0.056 atm
K = 6.
5) CH 3 COOH(aq) + H 2 O W CH 3 COO
!
+ H 3 O
+ [CH 3 COOH] = 0.10 M [CH 3 COO!] = 0.10 M [H 3 O +] = 1.8 x 10!^5 M and water is the solvent
K = 1.8 x 10!^5
6) AgCl(s) W Ag
+
+ Cl
!
[Cl!]= 1.0 x 10!^3 M [Ag+]= 1.8 x 10!^7 M
K = 1.8 x 10!^10
7) [Cu(NH 3 ) 4 ]
2+
W Cu
2+
+ 4NH 3
[Cu2+]= 0.085 M [Cu(NH 3 ) 4 ] 2+] = 0.10 M [NH 3 ]= 1.0 x 10!^3 M
K = 8.5 x 10!^13
8) Fe 2 S 3 (s) W 2Fe
2+
+ 3S
2-
[Fe3+]= 1.2 x 10!^8 M [S^2 !]= 1.0 x 10!^26 M
K = 1.4 x 10!^94
13) H 2 SO 3 (aq) + H 2 O W HSO 3
!
+ H 3 O
+ [H 2 SO 3 ] = 0.10 M [H 3 O +] = [HSO3-^ ] K = 1.2 x 10!^2
[HSO 3 -^ ] = 3.5 x 10!^2
14) CH 3 COOH(aq) + H 2 O W CH 3 COO
!
+ H 3 O
+
[CH 3 COOH] = [CH 3 COO -^ ] K = 1.8 x 10-
[H 3 O +] = 1.8 x 10!^5
15) AgCl W Ag
+
+ Cl
! [Cl-^ ] = [Ag+] K = 1.8 x 10!^10
[Ag+] = 1.3 x 10!^5
- NH 3 (aq) + H 2 O W NH 4 +^ + OH! [NH 3 ] = [NH 4 +] K = 1.8 x 10!^5
[OH-^ ] = 1.8 x 10!^5
STOP - Obtain a quiz from your instructor.
