Table of Contents
What is the effect of dilution on specific conductance of an electrolyte?
Specific conductivity decreases on dilution. Equivalent and molar conductance both increase with dilution and reaches a maximum value.
Does specific conductance increases with dilution?
Specific conductance decreases with dilution whereas equivalent conductance increases.
What is effect of dilution on equivalent conductance?
The equivalent conductance of strong electrolyte is increased by dilution, because its value is equal to the multiple of Kυ and the volume of solution. By making dilution the volume of solution increases which also increase the value of equivalent conductivity.
What is the effect of concentration on conductance and specific conductance?
Answer: Specific Conductivity decreases with a decrease in concentration. Since the number of ions per unit volume that carry current in a solution decrease on dilution. Hence, concentration and conductivity are directly proportional to each other.
Does diluting a solution change the concentration?
Dilution is the addition of solvent, which decreases the concentration of the solute in the solution. Concentration is the removal of solvent, which increases the concentration of the solute in the solution. as the dilution equation. The volumes must be expressed in the same units.
What is the effect of dilution on an acid or base?
Diluting acids and bases When an acidic solution is diluted with water the concentration of H + ions decreases and the pH of the solution increases towards 7. To make the pH change by 1, a tenfold dilution is required (eg adding 9 cm 3 of water to 1 cm 3 acid). The acid is becoming less acidic.
Why the specific conductance of a solution decreases with dilution?
A1. Conductivity of a solution is the conductance of ions present in a unit volume of the solution. On dilution the number of ions per unit volume decreases. Hence, the conductivity decreases.
Why specific conductance decreases but molar conductance increases with dilution?
Molar conductance is dependent on the concentration of the electrolyte. When the solution is dilute the number of ions available per unit volume reduces, resulting in the reduction of the conductivity. The molar conductivity of both weak and strong electrolytes increases with a decrease in concentration or dilution.
What are the effects of dilution in Conductometric measurements?
Since the conductivity of a solution changes linearly with the electrolyte concentration, during a conductometric titration the volume increases with each addition of the titrant aliquot. For this reason, each χ value should be corrected for the dilution effect.
Why does conductivity increase with concentration?
As you increase the concentration of the solution you get more charge carrying ions, so the conductivity increases. But because the ions get closer together they begin to interact and slow each other down so the conductivity per mole of the ions is reduced.
How do you dilute a solution to a specific concentration?
To make a dilution, you simply add a small quantity of a concentrated stock solution to an amount of pure solvent. The resulting solution contains the amount of solute originally taken from the stock solution but disperses that solute throughout a greater volume.
How do you change the concentration of a solution?
The concentration of a solution can be changed:
- concentration can be increased by dissolving more solute in a given volume of solution – this increases the mass of the solute.
- concentration can be increased by allowing some of the solvent to evaporate – this decreases the volume of the solution.