A dilute electrolyte is not necessary weak and a concentrated electrolyte weak and a concentrated electrolyte is necessary strong explain
Some electrolytes are 100 % ionized while others are only partially ionized. Those that are 100% ionized are called strong electrolytes and those that are only partially ionized are called weak electrolytes. Therefore, one may have a concentrated solution or a dilute solution of a weak electrolyte or one may have a concentrated or a dilute solution of a strong electrolyte.
A dilute electrolyte is not necessarily weak because the concentration of ions in the solution can still result in significant ion conductivity. However, a concentrated electrolyte is necessary for strong conductivity because the higher concentration of ions allows for a greater number of charge carriers and, therefore, a higher conductivity. In a concentrated electrolyte, the probability of ion-ion collisions increases, promoting the movement of ions and enhancing the conductivity of the solution. Consequently, a concentrated electrolyte is typically associated with higher conductivity or strength compared to a dilute electrolyte.
To understand why a dilute electrolyte is not necessarily weak and a concentrated electrolyte is not necessarily strong, we need to clarify the terms "dilute" and "concentrated" in the context of electrolytes.
An electrolyte is a substance that can conduct electricity when dissolved in water or melted. It consists of ions that are formed by dissociation of the compound in solution or melt. These ions are responsible for carrying electric charge.
Now, let's discuss the terms "dilute" and "concentrated" in the context of electrolytes:
1. Dilute Electrolyte:
A dilute electrolyte refers to a solution or melt with a relatively low concentration of ions. In other words, it contains a small amount of dissolved electrolyte compared to the solvent. For example, a dilute solution may have a low number of ions per volume of solution.
However, the concentration of ions in a dilute electrolyte does not necessarily determine its strength. The strength of an electrolyte refers to its ability to conduct electricity. Certain weak electrolytes may still exhibit low electrical conductivity even in dilute solutions due to incomplete ion dissociation.
2. Concentrated Electrolyte:
Contrary to a dilute electrolyte, a concentrated electrolyte refers to a solution or melt with a relatively high concentration of ions. It contains a larger amount of dissolved electrolyte compared to the solvent. A concentrated solution has a higher number of ions per volume of solution.
Again, the concentration of ions in a concentrated electrolyte is not always indicative of its strength. A concentrated electrolyte can be a strong or weak electrolyte depending on its ability to conduct electricity. Some strong electrolytes can be concentrated and have a high electrical conductivity due to complete ion dissociation, while others may still exhibit low electrical conductivity if they are weak electrolytes.
In summary, the terms "dilute" and "concentrated" refer to the concentration of ions in an electrolyte solution or melt. However, the strength of an electrolyte is determined by its ability to conduct electricity, which can vary independently of concentration. A dilute electrolyte may or may not be weak, and a concentrated electrolyte may or may not be strong, depending on the extent of ion dissociation.