Question

Question 20. Calculate the freezing point depression and the freezing point of a 1.7 m ethylene glycol solution [-3.2 °C] Question 21. Calculate the freezing point of a 2.6 m sucrose solution. I - 4.8°C] Question 22. Calculate the boiling point elevation and the boiling point of 1.7 methylene glycol solution. [100. 87°C] Question 23. Calculate the boiling point of a 3.5 m glucose solution. [ 101.8°C]

Answer 1

ATf a kem p = 1.86 oc/m, molality - 1.7m, Et f = 1.86 och 17h & 3. 162 tsoin - the - 3.1628 - 0-3. 16200 -3.16€ 13 Answer ~3. 2 oC ath = 1.8 oC x 2.6 fs = 4.830 °C tom - to-4.830° = 8c-4.88°C atba-kb m - K6= 0. 512 oc/m Me 1.7m The Aissat 1.7 x 0.512 och - 0. 8 704oc not ton = Tyto . 8 704c = 100+ 0.870=60.87% 4 Th= kam = 0.5120 cх 3.540 = 1.79200 23) tsoin = Tbt 1.792°c = leof 1.792°Celoo.r oc