Freezing-point depression constant (°C/m) Freezing-point of DI water (°C) 1.86 0.30 Solution 1 Solution 2 Solution 3 Potassium chloride KCI KCI KCI Molar mass (g/mol) 74.55 74.55 74.55 Mass of calorimeter (g) 17.28 Volume of DI water (mL) Mass of potassium chloride (g) 48.9 1.08 0 Moles of potassium chloride (mol) 0.0145 Mass of calorimeter + solution (g) Mass of calorimeter + solution + ice (g) Freezing-point of solution (°C) 67.13 112.79 -0.39 Mass of calorimeter + ice after decanting (g) 43.92 Mass of ice added (g) 45.66 Mass of ice remaining after decanting (g) 26.64 Mass of melted ice (g) 19.02 Mass of water in final solution (g) 67.79

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