What is the freezing point of a solution of 1.17g of 1-naphthol, C10H8O, dissolved in 2.00ml of benzene at 20 degrees C? The density of benzene at 20 degrees C is 876g/ml. Kf for benzene is 5.12 degrees C/m, and benzene's normal freezing point is 5.53 degrees C.

1 answer

1. moles = grams/molar mass
   Solve for moles.
   
   molality = moles/kg solvent
   Solve for molality.
   
   delta T = kf*m
   Solve for delta T and convert to freezing point.
   You will need to use density to convert from volume to grams or kg.

   Answer ID
   525694

   Created
   April 5, 2011 4:32am UTC

   Rating
   1

   URL
   https://questions.llc/answers/525694