Equivalent conductances of NaCl, HCl and CH₃COONa at infinite dilution are 126.45, 426.16, 91 Ω⁻¹cm²eq⁻¹ respectively. Calculate the degree of dissociation of CH₃COOH, if equivalent conductance of CH₃COOH solution is 30.071.
Answers
Answered by
1
Answer:
Given that,
∧
∞
˚
NaCl=126.45 ohm
−1
cm
2
eq
−1
∧
∞
˚
HCl=425.16 ohm
−1
cm
2
eq
−1
∧
∞
˚
CH
3
COONa=91 ohm
−1
cm
2
eq
−1
∧
∞
˚
NaCl=
∧
∞
˚
Na
+
+
∧
∞
˚
Cl
−
=126.45……(i)
∧
∞
˚
HCl=
∧
∞
˚
H
+
+
∧
∞
˚
Cl
−
=425.16……(ii)
∧
∞
˚
CH
3
COONa=
∧
∞
˚
CH
3
COO
−
+
∧
∞
˚
Na
+
=91……(iii)
∧
∞
˚
CH
3
COOH=
∧
∞
˚
CH
3
COO
−
+
∧
∞
˚
H
+
⇒(iii)+(ii)–(i)
⇒425.16+91–126.45
=389.71 ohm
−1
cm
2
eq
−1
Answered By 0mk@r
Explanation:
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