Chemistry

posted by .

A 5.00-gram sample of glucose, C6H12O6, [molar mass = 180.] is dissolved 10.0 grams of water

What is the molality of the glucose solution?

Calculate the boiling(BP) and freezing points(FP) of this solution to the nearest 0.1 C°.


The vapor pressure of pure water at 30ºC is 25.0 torr. What is the vapor pressure of the solution described above at 30°C?

  • Chemistry -

    moles glucose = grams/molar mass
    Solve for moles.

    m = #moles/L soln
    You know #moles from above and you know L soln. Solve for m.

    f.p.
    delta T = Kf*m, then solve for f.p. knowing normal f.p. is 0C.

    b.p.
    delta T = Kb*m, then solve for b.p. knowing normal b.p. is 100 C.

    mole fraction water = moles H2O/total # moles (that is, moles water + moles glucose), then
    Psoln = XH2O*25.0 torr.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    Five (5.00) grams of glucose, C6H12)6, is dissolved in 500.0 grams of acetic acid. What is the new freezing point and boiling point for the solution?
  2. Chemistry HELP!

    A student placed 10.5g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.- mL mark on the neck of the flask was reached. The flask …
  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

    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.
  5. Chemistry

    When 24.0g og glucose(a nonelectrolyte) are dissolved in 500g of water, the solution has a freezing point of -0.47C. What is the molar mass of glucose according to yhe data?
  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. science

    to prepare 500cm^3 of glucose solution of concerntration 1M. The chemical formula of glucose is C6H12O6.calculate (1)the relative molecular mass and molar mass.(2)the amount of glucose which will be in the solution.(3)the mass of glucose …
  8. science

    to prepare 500cm^3 of glucose solution of concerntration 1M. The chemical formula of glucose is C6H12O6.calculate (1)the relative molecular mass and molar mass.(2)the amount of glucose which will be in the solution.(3)the mass of glucose …
  9. 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.
  10. chemistry

    A compound was found to be composed of the following amounts of elements: 20.00% wt% C, 26.64wt% O, 46.65 wt%N, and 6.71wt%H. A 6.125 grams sample of this compound dissolved in 46.205 grams of water as a solution was found to have …

More Similar Questions