please help me figure out the rest of the questions and pls show how to solve! thsnk you!!

Freezing Polnt Depression Report Sheet Name and Drawer Number? Partner's Namey. Sample number Freezing point of pure acetic acid after applying any Iemperature correction 166 Volume of acetic acid used in test tube B 25mL Mass of water used to prepare waterlacetic acid solution 1.009 Molality of water in acetic acid solution Freczing point of water/acetic acid solution Atr of water/acetic acid solution Calculated kr of acetic acid Mass of unknown solute used to prepare solution 0.719 Freczing point of solution of sample Atr of acetic acid solution of sample Calculated molality of solution of sample Number of moles of sample in solution Molar mass of sample: Show the calculations of kr and of the molar mass. T=15C1C=14C+=1fmCO=14C