chemistry
posted by Monique .
A glucose solution contains 55.8g of glucose (C6H12O6) in 455g of water. Calculate the freezing poing and boiling point of the solution. (Assume a density of 1.00 g/ml for water.
This what I did, I got moles of C6H12O6, 0.89 moles C6H12O6
then I got the mass of the solution 455g/1000kg, 0.455 I then divided 0.89 solute mol/0.455 kg solvent. I was going to do the formula for freezing and boiling but what do I do with the density. I hope I havent confused you. I guess I don't know what to do with the density or if I have set this up right.

You ignore the density. Since it is 1.00 g/mL, that just means that you could calculate the volume of the solution but you don't need that.
moles glucose = 55.8/180.16 = not 0.89 but closer to 0.3 but that isn't exact.
m = moles/kg solvent = 0.3/0.455 = x
delta T = Kf*m and
delta T = Kb*m
Respond to this Question
Similar Questions

chemistry
What is the freezing point of a solution that contains 10.0 g of glucose (C6H12O6)in 100.g of H20? 
chemistry
Calculate the boiling point elevation of a solution containing 22.8 g of glucose (C6H12O6) dissolved in 672.0 g of water. Calculate the freezing point depression for the same solution. 
chemistry
Calculate the boiling point elevation of a solution containing 22.8 g of glucose (C6H12O6) dissolved in 672.0 g of water. Calculate the freezing point depression for the same solution. 
Chemistry
Calculate the freezing point of each of the solution 75.0 of glucose,C6H12O6 , added to 9.30×10−2 of water.... Please help 
Chemistry
A 5.00gram sample of glucose, C6H12O6, [molar mass = 180.] is dissolved 10.0 grams of water What is the molality of the glucose solution? 
Chemistry 1200
For each of these solutions, determine the boiling point of the solution 0.238 M glucose (C6H12O6) in water (Assume the density of the solution is 1.00 g/mL.) 
Science_Chemistry
A glucose (C6H12O6) solution is 2.5% glucose by mass. If the density of the solution is 1.10 g/mL, what is the molarity of glucose/water solution? 
Chemistry
What is the freezing point of a solution that contains 10.0 g of glucose (C6H12O6) in 100 g of H2O? 
Chemistry
A glucose solution contains 55.0g of glucose C6H12O6 in 475g of water. Compute the freezing point and boiling point of the solution. Assume a density of 1.00g/mL for water. 
chemistry
What are the freezing point and boiling point of an aqueous solution of 15.5 g glucose(C6H12O6) dissolved in 150 g of water?