ElectrochemistryHard
Question
Ionic conductance at infinite dilution of A13+ and SO42− ions are 60 and 80 Ω−1 cm2 eq−1, respectively. The correct detail(s) regarding Al2(SO4)3 is/are
Options
A.the molar conductance is 140 Ω−1 cm2 mol−1
B.the equivalent conductance is 140Ω−1 cm2 eq−1.
C.the molar conductance is 840 Ω−1 cm2 mol−1.
D.the molar conductance is 23.33Ω−1 cm2 mol−1.
Solution
$\Lambda_{eq}^{o} = 60 + 80 = 140\text{ oh}\text{m}^{- 1}\text{ c}\text{m}^{2}\text{ e}\text{q}^{- 1}$
$\Lambda_{m}^{o} = 140 \times 6 = 840\text{ oh}\text{m}^{- 1}\text{ c}\text{m}^{2}\text{ e}\text{q}^{- 1}$
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