Dear sir ,
Why exactly the degree of dissociation or alpha is equal to the ratio of molar conductivity at concentration c by the molar conductivity at infinite dilution ? How did we get that expression?

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Solution

It is not derived

Alpha is defined as ratio of molar conductivity at infinity and a concentration
It is the defenition of alpha
Not a derived

We define alpha as above

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The molar conductance of $N H_{4} O H$ at 0.01 M concentration is 11.3 $o h m^{- 1} c m^{2} m o l^{- 1}$ . The degree of dissociation of $N H_{4} O H$ is: (Molar conductance at infinite dilution = 271.1 $o h m^{- 1} c m^{2} m o l^{- 1}$

Q. The molar conductance of

N H_{4} O H

at 0.01M concentration is 11.3

o h m^{- 1} c m^{2} m o l^{- 1}

. The degree of dissociation
of

N H_{4} O H

is
(molar conductance at infinite dilution is 271.1)

Q. At

25^{\circ} C

molar conductance of

0.1

molar aqueous solution of ammonium hydroxide is

9.52

{ohm}^{- 1} {cm}^{2} {mol}^{- 1}

and at infinite dilution its molar conductance is

238

{ohm}^{- 1} {cm}^{2} {mol}^{- 1}

. The percentage degree of dissociation of ammonium hydroxide at the same concentration and temperature is:
[1 Mark]

Q. The molar conductance of

N H_{4} O H

at 0.01M concentration is 11.3

o h m^{- 1} c m^{2} m o l^{- 1}

. The degree of dissociation
of

N H_{4} O H

is
(molar conductance at infinite dilution is 271.1)

Q. At 25C molar conductance of 0.1 molar aqueous solution of ammonium hydroxide is 9.54

o h m^{1} c m^{2} m o l^{1}

and at infinite dilution its molar conductance is 238

o h m^{1} c m^{2} m o l^{1}

. The degree of ionisation of ammonium hydroxide at the same concentration and temperature is:

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Dear sir , Why exactly the degree of dissociation or alpha is equal to the ratio of molar conductivity at concentration c by the molar conductivity at infinite dilution ? How did we get that expression?

It is not derived Alpha is defined as ratio of molar conductivity at infinity and a concentration It is the defenition of alpha Not a derived We define alpha as above

Dear sir ,
Why exactly the degree of dissociation or alpha is equal to the ratio of molar conductivity at concentration c by the molar conductivity at infinite dilution ? How did we get that expression?

It is not derived

Alpha is defined as ratio of molar conductivity at infinity and a concentration
It is the defenition of alpha
Not a derived

We define alpha as above