Conductance in Electrolytic Solutions

IMPORTANT

Conductance in Electrolytic Solutions: Overview

This topic covers concepts, such as, Strong Electrolytes, Weak Electrolytes, Ostwald's Dilution Law for Weak Electrolytes & Wheatstone Bridge for Resistance Measurement etc.

Important Questions on Conductance in Electrolytic Solutions

MEDIUM
IMPORTANT

The relation among the cell constant, the resistance of the solution in the cell and the conductivity of the solution is

EASY
IMPORTANT

The molar conductivity of a 1.5 M solution of an electrolyte is found to be 138.9 S   c m 2   mo l 1 .  Calculate the conductivity of the solution.

MEDIUM
IMPORTANT

The molar conductivity of a 1.5 M solution of an electrolyte is found to be 138.9 S cm2 mol-1. Calculate the conductivity of the solution?

EASY
IMPORTANT

The relationship between the conductivity and the molar conductivity of a solution can be expressed as:

EASY
IMPORTANT

The resistance of a conductivity cell containing 0.001 M KCI solution at 298 K is 1500   Ω.  The cell constant would be (if the conductivity of 0.001 M KCI solution at 298 K is   0.146× 10 3 S cm 1  ):  

MEDIUM
IMPORTANT

How does the conductivity of a solution of acetic acid will vary if a solution of sodium hydroxide is added?

EASY
IMPORTANT

How does the conductivity of a solution of acetic acid will vary if a solution of sodium hydroxide is added?

HARD
IMPORTANT

The correct order of equivalent conductance at infinite dilution of LiCl, NaCl and KCl is:

MEDIUM
IMPORTANT

The limiting molar conductivities of the given electrolytes at 298 K follow the order

λK+=735 S cm2 mol-1, λCl-=763 S cm2 mol-1, λCa2+=1190 S cm2 mol-1, λSO42-=160.0 S cm2 mol-1

MEDIUM
IMPORTANT

At a fixed concentration, the molar conductance of aqueous sodium hydroxide at 298 K is found to be10 ohm-1.cm2.mol-1. At infinite dilution and 298 K, its molar conductance is found to be 242 ohm-1.cm2.mol-1. Find the degree of ionization of sodium hydroxide at the same concentration and temperature.

MEDIUM
IMPORTANT

If the resistance of 0.1M KCl solution in a conductance cell is 300 Ω and conductivity is 0.013 S.cm-1, then the value of cell constant is _________

EASY
IMPORTANT

If the conductivity of a 0.5MKCl solution at 298 K is 0.024 S.cm-1, then the molar conductivity of the solution would be ____ S.cm2·mol-1

MEDIUM
IMPORTANT

The molar conductivities of KCl, NaCl and KNO3 are 100, 120 and 90 cm2·mol-1, respectively. The molar conductivity of NaNO3 would be _____  cm2·mol-1

EASY
IMPORTANT

The degree of ionisation of a weak electrolyte increases

EASY
IMPORTANT

Identify a weak electrolyte from the given compounds.

EASY
IMPORTANT

Identify a strong electrolyte from the given compounds.

HARD
IMPORTANT

Among the following, the plot that correctly represents the conductometric titration of 0.05 M H2SO4 with 0.1 M NH4OH is

HARD
IMPORTANT

The molar conductivity of 0.02 M HCl solution is 407.2 S cm2 mol-1 at 25 °C. Its conductivity will be:

MEDIUM
IMPORTANT

The conductivity of 0.10M solution of KCl at 298K is 0.0129 S cm-1. Calculate its molar conductivity?

MEDIUM
IMPORTANT

The SI unit of molar conductivity is