Calculate van't Hoff factor of K ₂ SO ₄ if 0.1 ~m aqueous solution of K ₂ SO ₄ freezes at -0.43 ^ C and cryoscopic constant of water is 1.86 ~K ~kg ~mol ⁻¹ .

Step-by-step solution

array ll & T _ f = i K K _ f m & 0.43= i 1.86 0.1 & i = 0.43 1.86 0.1 =2.3 array [Note: In the question, the freezing point of aqueous solution is changed from -0.43 ~K to -0.43^ C to apply appropriate textual concepts.]