Question

1 point What is the freezing point of an aqueous solution prepared by dissolving 113 g potassium carbonate (K,CO3, 138 g/mol) in 2.50 kg water. Use the ideal van 't Hoff factor. [K (water) - 1.86 °C/m) -1.83 °C +1.83 °C -0.609 °C -1.23 °C Previous Submit

Answer 1

kg = 1.86°C/m begree of dissociation) i for K2CO 2 m- molality molality Given mass of solute L m. Mo con mess x Mass of solvention st-ikum - 2x1.86X113 140X2,50 ATG = 1.20°c. Freezing point is taken to be 0°C. so the frezing poing (0 -1.26 ) C So, the freezing point comes out to be - 1.20°C. so lat option de -1.236 is near to it, . it is correct.