Lesson 11-15 Flashcards
Electrolytic Cells
Reduction occurs at the cathode
Oxidation occurs at the anode
At the cathode, water is reduced to
The electrolysis of water produces hydrogen and oxygen gases
If the blood becomes acidic,
buffer solutions increase the pH value of blood
What effect will likely occur when a catalyst is added on a reaction
The system reaches equilibrium faster
Kc of H2 + I2 = 2Hl
2.0
Kc is 49 of H2 + I2 = 2HI
HI =
1.55
Cathode and Anode of
Ni(s) -> Ni2+(aq) + 2e-
Au3+(aq) + 3e- -> Au(s)
Au3+ , Ni
E = -0.257V
E = +1.498V
+1.755V
H of 2C(s diamond) -> 2C(s graphite)
H = -3.8 kJ
S of 2C(s diamond) -> 2C(s graphite)
S = + 6.72 J/mol
G of 2C(s diamond) -> 2C(s graphite)
G = -5.51 kJ
500°C N2(g) + 3H2(g) <-> 2NH3(g)
Shift to left
ion-product constant of water
Kw = [H3O+][OH-]
Kw value of water with oh 7.30
2512 x 10^-15
True or False
At point A on the tine axis, the concentration of all three gases is zero
False
The pOH of a solution of NaOH is 11.30. What is the [H+] for this solution?
2.0 x 10^-3