* Molarity represents the number of moles of solute per liter of solution.
* Normality represents the number of equivalents of solute per liter of solution.
Sodium thiosulfate (Na₂S₂O₃) has two equivalents per mole due to the presence of two sulfur atoms that can undergo redox reactions.
Therefore, the normality of a sodium thiosulfate solution is twice its molarity.
Example:
A 0.1 M solution of sodium thiosulfate will have a normality of 0.2 N.
Important Note: Normality is not a universal unit and depends on the specific reaction being considered. In some reactions, sodium thiosulfate might have a different number of equivalents. It's always best to specify the specific reaction when using normality.
