chemistry

posted by .

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

  • chemistry -

    freezing point.
    delta T = Kf*molality.
    Convert 12.0 g glucose to moles. Moles = grams/molar mass.
    Then use m = moles/kg solvent to calculate molality, substitute that into the first equation to calculate delta T. Subtract from 0o to find the freezing point of the solution.

    boiling point. Done essentially the same way.
    delta T = Kb*m
    Post your work if you get stuck.

  • chemistry -

    Molar mass-180
    12.0\180=
    is the molar mass 6.67 or is it 6.67*10^-2

  • chemistry -

    Neither. The molar mass = 180.
    moles in 12.0 grams is
    12.0/180 = 0.06667 and I would keep it like that until the end, then round the final answer.

  • chemistry -

    whats the kg solvent

  • chemistry -

    The problem tell you 50.0 g H2O, which is 0.050 kg.

  • chemistry -

    Freezing point DT=KF*M mol of glucose 12g/358=0.034mols kf=1.86c/mol SODT=1.86x0.034 =0.06

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    What is the freezing point of a solution that contains 10.0 g of glucose (C6H12O6)in 100.g of H20?
  2. 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.
  3. 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.
  4. Chemistry

    I'm not sure if i did this problem right or not. I keep reading through my book, and i think i followed the equations right, but i'm not confident with my answers. The problem: 5.0 g of glucose,C6H12O6, is disolved in 500.0 g of acetic …
  5. Chemistry

    calculate the freezing and boiling points of each of the following solutions. (a) 0.37 m glucose in ethanol freezing point ______I got -1.2e2 but its wrong_______°C boiling point _________I got 1.1e2 but its wrong:(____°C (b) 15.0 …
  6. 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 …
  7. 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.
  8. 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?
  9. CHEMISTRY

    Calculate boiling point and freezing point of this solution which contains 5.85g of C6H12O6 in 255g H2O. pleasee
  10. CHEMISTRY HELP

    Calculate boiling point and freezing point of this solution which contains 5.85g of C6H12O6 in 255g H2O. pleasee

More Similar Questions