Here's why:
* Neutral salts are formed by the reaction of a strong acid and a strong base.
* Potassium sulfate is formed from the reaction of sulfuric acid (H₂SO₄, a strong acid) and potassium hydroxide (KOH, a strong base).
* The ions produced by the salt in solution (K⁺ and SO₄²⁻) do not significantly react with water to produce H⁺ or OH⁻ ions, thus the solution remains neutral.
Important Note: The pH of a potassium sulfate solution can slightly deviate from 7 depending on factors like impurities in the salt, the concentration of the solution, and temperature. However, under normal conditions, it can be considered neutral.
