Strong and Weak Electrolytes A strong electrolyte, like NaCl, splits up completely into sodium and chloride ions in solution. Likewise, a strong acid like HCl splits up completely into hydrogen and chloride ions in solution. Salts are often strong electrolytes, and strong acids are always strong electrolytes.
So, the reason is- an aqueous solution of Sodium chloride is a strong electrolyte since it completely ionizes in solution form.
Strong electrolytes fall into three categories: strong acids, strong bases, and salts. (Salts are sometimes also called ionic compounds, but really strong bases are ionic compounds as well.)
A strong electrolyte is a solution in which a large fraction of the dissolved solute exists as ions. Ionic compounds, and some polar compounds, are completely broken apart into ions and thus conduct a current very well—this makes them strong electrolytes.
There are two types of electrolytes- strong and weak electrolytes. A strong electrolyte is an electrolyte that dissolves almost completely in water. An example of a strong electrolyte is Hydrogen Chloride (HCl). A weak electrolyte is an electrolyte that doesn't dissolve completely in water.
If the physical or chemical process that generates the ions is essentially 100% efficient (all of the dissolved compound yields ions), then the substance is known as a strong electrolyte. If only a relatively small fraction of the dissolved substance undergoes the ion-producing process, it is called a weak electrolyte.
Cane sugar is compound which does not have ions even in solution and contains only molecules. Hence, it does not conduct electricity. On the other hand sodium chloride solution contains free mobile ions and allows electric current to pass through it. This makes it a good conductor of electricity.
Sodium chloride is a strong electrolyte because it is a salt that dissociates completely in water.
Sugar is a nonelectrolyte. Sodium hydroxide is a strong base, hence, we can classify it as a strong electrolyte. Sodium chloride is a salt, hence, we can classify it as a strong electrolyte.
Placing a salt into a solvent (such as water) also results in an electrolyte solution, as the components in the salt dissociate in a process called solvation. When sodium chloride or table salt is added to water, for example, the salt dissolves and breaks down into its component ions sodium (Na+) and chloride (Cl-).
There are some salts which do not produce basic nor acid salt then they are called neutral salts. Therefore salts are either weak or strong electrolytes.
Acids, alkalis, and salts like sodium chloride, potassium chloride, sodium hydroxide, potassium hydroxide, sodium nitrate, and lead sulfate, are all examples of strong electrolytes.
o Ask the students: "Why did the salt make the water more conductive to electricity?" (The molecules of salt dissociate into ions of opposite charges. It is the ions that render the water conductive to electricity. In our experiment, the Na+ and Cl- ions made it possible for the distilled water to conduct electricity.)
Many salts, such as sodium chloride, behave as electrolytes when dissolved in water. Pure water will not behave as an electrolyte.
Hydrochloric, nitric, and sulfuric acids and table salt (NaCl) are examples of strong electrolytes.
NaCl (Sodium chloride) is a salt that doesn't show acidic or basic nature. It is neutral with a pH of about 7. It is made with the combination of hydrochloric acid (HCl) and sodium hydroxide (NaOH). Both of them having a strong nature, neutralizes each other and produces neutral salt NaCl and water.
A strong electrolyte is a solution/solute that completely, or almost completely, ionizes or dissociates in a solution. These ions are good conductors of electric current in the solution.
Ionic compound are strong electrolytes than any other mentioned compounds in your question.
Silver chloride (AgCl) and ammonium acetate (CH3COONH4) are examples of weak electrolytes.
Pure water molecules do not have enough ions to transmit electrons from one end to the other. Pure water is a poor electrolyte due to this feature. To be a powerful electrolyte, it must ionize into its constituent ions, however pure water only barely ionizes into its ions, making it a weak electrolyte.
Weak electrolytes do not completely dissociate into the solvent, whereas strong electrolytes can dissolve in the aqueous solution. The solution contains both molecules and the ions that are present in the electrolyte. Weak electrolytes ionise partially in water but strong electrolytes ionise completely.
Since we need copper, we use a salt solution containing copper as an electrolyte. Here, the electrolyte used is copper sulphate.