Ask questions and get helpful responses.
Ask a New Question
  1. Questions

chemistry

When the glucose solution described in part A is connected to an unknown solution via a semipermeable membrane, the unknown solution level rises. Based on this information, what can be said about these two solutions?

a.) The unknown solution had the lower concentration.
b.)The unknown solution had the higher concentration.
c.)The two solutions have the same concentration.

I'll say its A, since when u put in the soln, it rised, meaning it was lwoer in conc. but ive been wrong.

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

  1. The solvent moves from the lower to the higher concn in osmosis. The way I look at it is that the solvent is trying to dilute the appropriate solution so that the pressure on the two sides of the semipermeable membrane will be equal. The solute can't move through the membrane (as a way of increasing the concn of the lower one) which leaves it up to the solvent to do its thing. It CAN move through the membrane so it tries to dilute the more concd solution.

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

  2. the answer is B. the above was WRONG!!

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

  4. The answer is B the unknown solution had a higher concentration to began with.

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

  5. the right answer is A. the unknown solution has the lower concentration ...

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

  6. The correct answer is B! because Water flows from low to high concentration across a semi-permeable membrane.

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

  8. I had this question on mastering chemistry. It's A.

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

  9. The answer is B. I just did this on mastering and picked A and got it wrong.

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

  10. lower

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

  12. As water flows out of the unknown solution, it is getting more and more concentrated. That means it had a lower concentration to begin with. The system will form an equilibrium where the two solutions have comparable concentrations depending on the pressure applied to each solution.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    Dr.Mack

  13. Answer -> oi59 . tinypic . com / 2w58yyt . jpg

    If the unknown solution level rises, then The unknown solution had the higher concentration.
    If the unknown solution level drops, then The unknown solution had the lower concentration.

    Beware of those who said answer from masteringchemistry, they might have question with 'drops' instead of 'rises'.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    Dr.Mack's Student

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    A student placed 14.0 of glucose () in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.- mark on the neck of the flask was reached. The flask was then

  2. biology

    A red blood cell is placed into each of the following solutions. Indicate whether crenation, hemolysis, or neither will occur. Solution A: 3.21% (m/v) NaCl Solution B: 1.65% (m/v) glucose Solution C: distilled H2O Solution D:

  3. chemistry

    A student placed 19.0g of glucose (c6h12o6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100ml.- mark on the neck of the flask was reached. The

  4. Science

    A solution is prepared by dissolving 11gm glucose in 200 cm3 water at 30°c. What is the mass percentage of glucose in solution? The density of water 30°c is 0.996 glcm3?

  1. chem

    suppose you had an unknown solution that contained either dissolved NaOH, NaCl< or NaNO3. you add 4 drops of AgNO3 solution to 4drops of the unknown solution and observed that no solid formed. What can be concluded the unknown

  2. Chemistry

    How many grams (of mass m) of glucose are in 355mL of a 5.50% (m/v) glucose solution? You have a solution that is 18.5% (v/v) methyl alcohol. If the bottle contains 2.49L of solution, what is the volume (V) in milliliters of

  3. Chemistry

    Help! I have to get this done tonight and I cannot get this answer right. A solution of water (Kf=1.86 ∘C/m) and glucose freezes at − 3.55 ∘C. What is the molal concentration of glucose in this solution? Assume that the

  4. Chem

    A patient receives 3.2 L of glucose solution intravenously (IV). If 100. mL of the solution contains 5.0 g of glucose (carbohydrate), how many kilocalories did the patient obtain from the glucose solution? *If anyone could help me

  1. chemistry

    the density at 20 degrees celcius of a .258m solution of glucose in water is 1.0173 g/ml, and the molar mass of glucose is 180.2 g/mol. What is the MOLARITY of the solution?

  2. algebra

    In a certain medical test designed to measure carbohydrate tolerance, an adult drinks 9 ounces of a 20% glucose solution. When the test is administered to a child, the glucose concentration must be decreased to 10%. How much 20%

  3. Chemistry

    A 29.00 mL sample of an unknown H3PO4 solution is titrated with a 0.100 M NaOH solution. The equivalence point is reached when 24.63 mL of NaOH solution is added? What is the concentration of the unknown H3PO4 solution? The

  4. Chemistry

    A student placed 17.0 g of glucose (C_6H_{12}O_6) 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

Still need help? You can ask a new question.