Home
Class 12
CHEMISTRY
The equivalent conductances of two stron...

The equivalent conductances of two strong electrolytes at infinite dilution in H2O (where ions move freely through a solution) at `25^(@)C`are given below:
`wedge_(CH_(3)COONa^(@) = 91.0Scm^(2)//equ iv` , `wedge_HCl^(@)= 426.25cm^(2)//equiv`
What additional information/quantity one needs to calculate `overset(o)(wedge)` of an aqueous solution of acetic acid?

A

`Lambda_(o)` of chloroacetic acid `(ClCH_2COOH)`

B

`Lambda^(o) "of" NaCl`

C

`Lambda^(o) "of" CH_(3)COOK`

D

The limiting equivalent conductance of `H^(+)(lambda_(H+)^(o))`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

Calculate, molar conductance of acetic acid using appropriate molar conductances of the electrolytes listed above at infinite dilution in H_(2)O at 25^(@)C :

The equivalent conductances of CH_(3)COONa, HCI "and" NaCI at infinit e dilution are 91,426 an 126 S cm^(2) eq^(-1) respectively at 25^(2)C The equivalent conductance of 1 M CH_(3)COOH solution is 19.55 S cm^(2) eq^(-1) The pH of solution is (pK_(a)=4.74)

Calculate K_(a) of acetic acid it its 0.05N solution has equivalent conductances of 7.36 mho cm^(2) at 25^(@)C (lambda_(CH_(3)COOH)^(oo) = 390.70)

If the equivalent conductance of (M/20) solution of a weak monobasic acid is 25.0 S cm^2 eq^(-1) and at infinite dilution is 500 Scm^2eq^(-1) , then the dissociation constant of the acid is

The equivalent conductivity of N/10 solution of acitic acid at 25^(@)C is 14.3 ohm^(-1) cm^(2) eq^(-1) . Calculate the degree of dissociation of CH_(3)COOH if Lambda_(oo CH_(3)COOH) is 390.71.

The molar conductivities of wedge_(NaOAc)^(@) and wedge_(HCl)^(@) at infinite dilution in water at 25^(@)C are 91.0 and 426.2 S cm^(2)//mol respectively. To calculate wedge_(HOAc)^(@) , the additional value required is :

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) equiv^(-1) , respectively, at 25^(@)C . Calculate the equivalent conductance of acetic acid at infinite dilution.

At 25^(@)C the equivalent conductance of butanoic acid at infinite dilution is 386.6 ohm^(-1)cm^(2)eq^(-1) . If the ionization consatant is 1.4xx10^(-5) , calculate equivalent conductance of 0.05 N butanoic acid solution at 25^(@)C(ohm^(-1)cm^(2)eq^(-1)) ?

At infinite dilution, the equivalent conductances of CH_(3)COOHa, HCl and CH_(3)COOH are 91, 426 and 391 mho cm^(2)eq^(-1) respectively at 25^(@)C . The equivalent conductance of NaCl at infinite dilution wil be:

The specific conductance of a 0.01 M solution of acetic acid at 298 K is 1.65 xx 10^(-4) "ohm"^(-1)cm^(-1) . The molar conductance at infinite dilution for H^(+) ion and CH_(3)COO^(-) ion are 349.1 "ohm"^(-1) cm^(2 )"mol"^(-1) and 40.9 "ohm"^(-1) cm^(2) "mol"^(-1) respectively. Calculate : (i) Molar conductance of solution (ii) Degree of dissociation of acetic acid (iii) Dissociation constant for acetic acid.