The equivalent conductances of sodium chloride, hydrochloric acid and sodium acetate at infinite dilution are `126.45, 426.16` and `91.0ohm^(-1) cm^(-1)"equiv"^(-1)`, respectively, at `25^(@)C`. Calculate the equivalent conducatance of acetic acid at infinite dilution. `Lambda_(m)^(0)(HCl)="426.16 S cm"^(2)mol^(-1)` `Lambda_(m)^(0)(NaCl)="126.45 S cm"^(2)mol^(-1)` `Lambda_(m)^(0)(CH_(3)COONa)="91 S cm"^(2)mol^(-1)`
Text Solution
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According to Kohlraush s law, `Lambda_(ooCH_(3)COONa)=lambda_(CH_(3)COO^(-))+lambda_(Na^(+))=91.0`.....(i) `Lambda_(ooHCl)=lambda_(H^(+))+lambda_(Cl^(-))=426.16`.....(ii) `Lambda_(ooNaCl)=lambda_(Na^(+))+lambda_(Cl^(-))=126.45`.....(iii) Adding eqns. (i) and (ii) and subtracting (iii), `lambda_(CH3COO^(-))+lambda_(Na^(+))+lambda_(H^(+))+lambda_(Cl^(-))-lambda_(Na^(+))-lambda_(Cl^(-))` `=91.0+426.16-126.45` `lambda_(CH3COO^(-))+lambda_(H^(+))=Lambda_(ooCH_(3)COOH)` `="390.7 ohm"^(-1)cm^(2)"equiv"^(-1)`
The equivalent conductances of sodium chloride, hydrochloric acid and sodium acetate at infinite dilution are 126.45, 426.16 and 91.0 ohm^(-1) cm^(2) eq^(-1) , respectively at 25^(@)C . Calculate the equivalent conductance of acetic acid at infinite dilution.
The molar conductance of CH_(3)COOHNa HCI and NaCI at infinite dilutions are 91.0, 426.0 and 126.0 ohm^(-1) cm^(-1) respectively. Calculate the molar conductence of acetic acid at infinie dilution.
Equivalent conductances of NaCl, HCl and CH_(3)COONa at infinite dilution are 126.45, 426.16 and 91 ohm^(-1) cm^(2) eq^(-1) respectively. The equivalent conductance of CH_(3)COOH at infinite dilution would be :
Calculate Lambda_(m)^(oo) for acetic acid, given, Lambda_(m)^(oo)(HCl)=426 Omega^(-1)cm^(2)mol^(-1),Lambda_(m)^(oo)(NaCl)=126Omega^(-1)cm^(2)mol^(-1) , Lambda_(m)^(oo)(CHCOONa)=91Omega^(-1)cm^(2)mol^(-1)
The molar conductance of NaCl, HCl and CH_(3)COONa at infinite dilution are 126.45, 426.16 and 91 ohm^(-1) cm^(2) mol^(-1) respectively. The molar conductance of CH_(3)COOH at infinite dilution is :
If the molar conductivities at infinited dilution of NaCl, HCl and CH_(3)COONa are 126.4, 426.1 and 91.0 ohm^(-1) cm^(2) mol^(-1) respectively. What will be the that of acetic acid?
The molar conductances of NaCI, HCI and CH_3 COONa at infinite dilution are 12.45, 426. 16 and 91 "ohm"^(-1) cm^2 "hol"^(-1) respectively. The molar conductance of CH_3COOH at infinite dilution is .
