Home
Class 12
CHEMISTRY
At 18^(@)C the mobilities of NH(4)^(+) a...

At `18^(@)C` the mobilities of `NH_(4)^(+)` and `CIO_(4)^(-)` ions are `6.6 xx 10^(-4)` and `5.7 xx 10^(-4)cm^(2)"volt"^(-1)sec^(-1)` at infinite dilution. Calculate equivalent conductance of ammonium chlorate solution.

Text Solution

Verified by Experts

The correct Answer is:
`118.67 mho cm^(2) eq^(-1)`
From Kohlrausch's law, we have,
`Delta_(NH_(4)ClO_(4))^(@)=lamda_(NH_(4)^(+))^(@)+lamda_(ClO_(4)^(-))^(@)=Fu_(NH_(4)^(+))^(@) +Fu_(ClO_(4)^(-))^(@)`
`=F(u_(NH_(4)^(+))^(@)+u_(ClO_(4)^(-))^(@)=96500(6.6 xx 10^(-4)+5.7 xx 10^(-4)))`
`=118.67 "mho cm"^(2)`.
Promotional Banner

Similar Questions

Explore conceptually related problems

At infinite dilution the molar conductance of Al^(+3) and SO_(4)^(-2) ion are 189 and 160 Omega^(-1) cm^(2) "mole"^(-1) respectively. Calculate the equivalent and molar conductivity at infinite dilute of Al_(2)(SO_(4))_(3) .

The equivalent conductances of an infinitely dilute solution NH_(4)CI is 150 and the ionic conductances of OH^(-) and CI^(-) ions are 198 and 76 respectively. What will be the equivalent conductance of the solution of NH_(4)OH at infinite dilution. if the equivalent conductance of a 0.01N solution NH_(4)OH is 9.6, what will be its degree of dissociation.

0.04 N solution of a weak acid has a specific conductance 4.23 xx10^(-4)" mho.cm"^(-1) . The degree of dissociation of acid at this dilution is 0.0612. Calculate the equivalent conductance of weak acid at infinite solution.

The specific reaction rates of a chemical reaction are 2.45xx10^(-5)sec^(-1)" at "273K and 16.2 xx10^(-4) sec^(-1) at 303 K. Calculate the activation energy.

The value of mu^(prop) for NH_(4)Cl, NaOH and NaCl are 129.8, 248.1 and 126.4 ohm^(-1) cm^(2) mol^(-1) respectively. Calculate mu^(prop) for NH_(4)OH solution.