Electrolytes and Electricty conduvity

Question 1

When can solutions conduct electricity

Answer 1

Solutions can conduct electricity if electrolytes are present in the solution.

Question 2

What is a Electrolyte

Answer 2

A substance that can conduct electricity due to the presence of free
(moving) ions if melted or dissolved in a solution.

Question 3

Factors affecting the conductivity of solutions
4 marks

Answer 3

1. Nature of the substance
2. Solubility of substances
3. Concentration of the solution
4. Temperature of the solution

Question 4

What is the nature of the substance

Answer 4

The type of compound determines whether the substance tends to be
conductive

Question 4

What is the solubility of substance

Answer 4

If a substance is highly soluble, many ions will be available to conduct the
current, but if a substance is insoluble, it will not have ions and the current
cannot be conducted

Question 5

What is the concentration of the solution

Answer 5

The more of the electrolyte (solute) is present in the solution, the more ions will
be present, the better the current will be conducted

Question 6

What is a Ionic compounds

Answer 6

Dissociate into their ions when they dissolve in water

Question 7

Certain polar covalent molecules

Answer 7

Ionise in water to produce ions

Question 8

Most non-polar covalent molecules

Answer 8

Do not dissolve in water and will not have ions, therefore cannot conduct current