When 19.5 g of fluoroacetic acid (CH₂FCOOH) is dissolved in 500 g of water, the observed depression in the freezing point was found to be 1.00 K. The Van’t Hoff factor and the dissociation constant of the fluoroacetic acid, respectively are: (Given: \(K_f\) for water = 1.86 K kg mol⁻¹, Molar mass of CH₂FCOOH = 78 g mol⁻¹)