Doubt: It can be dolike this . then answer is different.this method right or wrong Chapter: Electrochemistry - Subject: Chemistry - Course: NEET Course

Doubt by Divya devangada

It can be dolike this . then answer is different.this method right or wrong

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Answers

Answer by nitesh chaudhary

If you read the question carefully, the equivalent conductivity of $B a^{2 +}$ and $C l^{- 1}$ are provided to you.

So the molar conductivity of $B a^{2 +}$ is: $2 \times 127 o h m^{- 1} m o l e^{- 1} = 254 o h m^{- 1} m o l e^{- 1}$

and that of $C l^{- 1} = 76 o h m^{- 1} c m^{2} m o l e^{- 1}$

Now apply Kohlrausch's law of molar conductivity of solution at infinite dilution:

$λ_{B a C l_{2}}^{o} = λ_{B a^{2 +}}^{o} + 2 λ_{C l^{- 1}}^{o} ⟹ λ_{B a C l_{2}}^{o} = 254 + 2 \times 76 = 406 o h m^{- 1} c m^{2} m o l e^{- 1}$ Now, , equivalent conductivity is $\frac{1}{2}$ times the molar conductivity for $B a C l_{2}$ so equivalent conductivity of $B a C l_{2} = \frac{1}{2} \times 406 = 203 o h m^{- 1} c m^{2} e q u i v a l e n t^{- 1}$

Doubt by Divya devangada

Answers

Answer by nitesh chaudhary

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