1. Questions

chemistry

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.

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
Monique

  1. 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

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    DrBob222

Respond to this Question

First Name

Your Response

Similar Questions

  1. CHEM

    1. How much heat is released when 9.22 grams of glucose C6H12O6 reacts according to the following equation? C6H12O6 + 6O2 --> 6CO2 + 6H2O ∆H = -2803 kJ 2. How much heat is absorbed during photosynthesis when 9.22 grams of

  2. General Chemistry

    A solution was prepared by dissolving 18.00 grams glucose in 150.0 grams water. The resulting solution was found to have a boiling point of 100.34 0C. Calculate the molar mass of glucose. (Kb (water) = 0.51 0C kg/mol; Tb(water) =

  3. chemistry

    What is the freezing point of a solution that contains 10.0 g of glucose (C6H12O6)in 100.g of H20? Kf for water is 1.86C/m.

  4. chemistry

    what is the freezing point of 0.05 M glucose(C6H12O6), 0.05 M NaCl, and 0.05 M MgCl2?

  1. chemessty

    What is the freezing point of an aqueous solution of 10.0 g of glucose (C6H12O6) in 50.0g H2O? (kf=-1.86 C/m)

  2. Chemistry

    The overall balanced equation for the production of ethanol from glucose is as follow C6H12O6 = 2C2H5OH + 2CO2 a) what is the theoratical yield of ethanol available from 10gram of glucose? b) If in a particular experiment, 1gram

  3. Chemistry

    A 1.50 g sample of glucose (C6H12O6) is burned in a bomb calorimeter that contains water at 25.0 0C. The heat capacity of the bomb calorimeter is 1046 J/0C. When the glucose is combusted, the temperature of the water rises to 47.4

  4. chemistry

    Calculate the freezing point and boiling point of 12.0g of glucose (C6H12O6) in 50.0g H20

  1. Chemistry

    When the sugar glucose, C6H12O6 is burned in air, carbon dioxide and water vapor are produced. Write the balanced chemical equation for this process, and calculate the theoretical yield of carbon dioxide when 1.00 g of glucose is

  2. chemistry

    a sample of glucose, c6h12o6 contains 2.03*10^21 atoms of carbon. (a)how many atoms of hydrogen does it contain? (b)how many molecules of glucose does it contain? (c)how many moles of glucose does it contain? (d)what is the mass

  3. Chemistry

    A solution is prepared by dissolving 18g of water in 150g of glucose,the resulting solution was found to have boiling point of 100.34°c. Calculate the molar mass of glucose.

  4. Chemistry

    The human body “burns” glucose (C6H12O6) for energy. a. Write a balanced chemical reaction for the complete combustion of glucose to CO2(g) and H2O(l) such that the stoichiometric coefficient for glucose is 1. b. When 1.00 g

View more similar questions or ask a new question.