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Standard XII

Chemistry

Van't Hoff Factor

The molar con...

Question

The molar conductivity of acetic acid at infinite dilution is 390.7 and for 0.1 M acetic acid solution is 5.2 mho cm $^{2}$ mol $^{- 1}$ . The degree of dissociation of 0.1 M ${CH}_{3} COOH$ solution is:

13.3%

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0.0133%

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1.33%

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133%

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Solution

The correct option is C 1.33%
we have,
$α = \frac{\land_{m}^{c}}{\land_{m}}$

$α = \frac{5.2}{390.7} \times 100$

$α = 1.33$ %

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The molar conductivity of acetic acid at infinite dilution is 390.7 and for 0.1 M acetic acid solution is 5.2 mho cm2 mol−1. The degree of dissociation of 0.1 M CH3COOH solution is:

The correct option is C 1.33%we have,α=∧cm∧mα=5.2390.7×100α=1.33 %

The molar conductivity of acetic acid at infinite dilution is 390.7 and for 0.1 M acetic acid solution is 5.2 mho cm $^{2}$ mol $^{- 1}$ . The degree of dissociation of 0.1 M ${CH}_{3} COOH$ solution is:

The correct option is C 1.33%
we have,
$α = \frac{\land_{m}^{c}}{\land_{m}}$

$α = \frac{5.2}{390.7} \times 100$

$α = 1.33$ %