3- Calculate the transport numbers of positive ion if the current pass through the electrolyte is 0.23A and the current carried by negative ion is about 0.170A.
4- Using the data in the Table below : Ionic Mobilities, calculate the molar conductivity of following ions:
a.Ba2+
b. Br-
c. Zn2+
d. H+
5- Conductivity of 0.000241M acetic acid is 7.896x10-5 Ω-1cm-1, if (ΛȘ) = 390.5 Scm2/mol, calculate the value of the acid dissociation constant Ka?
Table (1)
Cation: H+ μ°(cm2 V-1 s-1): 36.23 x10-4 | Anion: OH- μ°(cm2 V-1 s-1): 20.64 x10-4
Cation: Na+ μ°(cm2 V-1 s-1): 5.19 x10-4 | Anion: Cl- μ°(cm2 V-1 s-1): 7.91 x10-4
Cation: K+ μ°(cm2 V-1 s-1): 7.62 x10-4 | Anion: Br- μ°(cm2 V-1 s-1): 8.09 x10-4
Cation: Zn2+ μ°(cm2 V-1 s-1): 1.094 x10-3 | Anion: SO42- μ°(cm2 V-1 s-1): 1.658 x10-3
Cation: Ba2+ μ°(cm2 V-1 s-1): 1.32 x10-3 | Anion: NO3- μ°(cm2 V-1 s-1): 7.4 x10-4
Table (2)
Cation: H+ λ+°: 349.8 | Anion: OH- λ-°: 199.1
Cation: Na+ λ+°: 50.10 | Anion: F- λ-°: 55.40
Cation: K+ λ+°: 73.50 | Anion: Cl- λ-°: 76.35
Cation: Cs+ λ+°: 77.26 | Anion: NO3- λ-°: 71.46
Cation: Ba2+ λ+°: 127.26 | Anion: Acetate λ-°: 40.90
Cation: Mg2+ λ+°: 106.10 | Anion: SO42- λ-°: 160.0