What Is a Strong Electrolyte?

Concept: A strong electrolyte is an electrolyte that ( almost ) completely ionizes in an aqueous solution . ^[1]

There is no absolute criterion for the strength of electrolytes.

Because the same electrolyte is in

Strong acids (sulfuric acid, HCl, nitric acid, etc.), strong bases (sodium hydroxide, potassium hydroxide, etc.), most of the normal salts (sodium chloride, silver nitrate, potassium carbonate, etc.) are strong electrolytes.

However, a strong electrolyte is not necessarily completely soluble in water, because it is defined as "fully ionized in water". As long as the dissolved part of the substance is completely ionized, it is a strong electrolyte. Therefore, barium sulfate, silver chloride Insoluble substances such as, barium carbonate are strong electrolytes.

Strong electrolytes: all salts (high school stage), three strong acids (only inorganic high acids are required in high school, organic strong acids are for understanding only, trinitrophenol (picric acid), etc.), and alkalis (hydrogens) formed by alkali metals and alkaline earth metals Lithium oxide and magnesium hydroxide are medium strong bases, except for zinc hydroxide and aluminum hydroxide.

Strong electrolytes and weak electrolytes cannot be classified as substances, but are merely classifications of electrolytes. Strong electrolytes only have ions in the aqueous solution, and weak electrolytes have both molecules and ions in the aqueous solution. ^[2]