Question

MID-58268947 13.72 The highest freezing point The lowest freezing point 0040 m gheenn (C3H.0 0.030 m phenol (CH,OH 0.030 111 phenol (CsHOR 020m KBr Incorrect; Try Again: 6 attempts remaining

Answer 1

• 
  
  since all the solutes are in water K_f = 1.86
  
  for glycerin ΔT_f = 1.86 X .04 X 1 = 0.0744 ; so it freezes at 075 ^oC
  
  for KBr ΔT_f = 1.86 X .02 X 2 = 0.075 so it also freezes at 075 ^oC
  
  for phenol ΔT_f = 1.86 X .03 X 1 = 0.0558 so it freezes at 056 ^oC
  
  The order of freezing is phenol first then the other 2 freeze at the same temperature as the temperature drops. Phenol has the highest freezing point the other 2 have equal lowest.