posted by .

4.00L of water was added to 0.400L of an aqueous ethanol solution, giving a final concentration of 0.0400 M. What is the initial concentration of ethanol?

I just need help setting it up pls


  • Chemistry -

    Never mind I figured it out!

  • Chemistry -

    you diluted it by a factor of 11, with one part original, ten parts water.

    Then, if the final concentration is.04M, the initial must have been .44M (11 times the final)

    Want to do it with Math?

    final solute= initial solute

    ?= .44M

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. science(chem)

    I'm making different concentrations of ethanol and I just wanted to check my calculations and method. Making ethanol concentrations of: 0.40% 0.30% 0.20% 0.10% 0.05% To make the 0.40% ethanol from stock solution using 100ml volumetric …
  2. chemistry

    The concentration is 1.67M. I have 5.28 grams of ethanol. How many liters of water will I need to make this solution with the above concentration?
  3. chemistry

    if 5.00g of ethanol is added to 15.0g of water, what is the % concentration of ethanol in water?
  4. chemistry 1100

    If 5.00G of ethanol is added to 15.0G of water, what is the % concentration of ethanol in water ?
  5. chemistry

    hi, if 5.00g of ethanol is added to 15.0g of water, what is the % concentration of ethanol in water?
  6. Ap chemistry

    What is the approximate molar fraction of ethanol c2h5oh in an aqueous solution in which the ethanol concentration is 11.0 molal?
  7. chemistry

    A solution of ethanol, C2H5OH, is prepared by dissolving 25.0 mL of ethanol in enough water to give a total volume of 250.0 mL. What is the percent-by-volume concentration of ethanol?

    An ethanol-water solution is prepared by dissolving 10.00 ml ethanol C2H5OH (density=0.789g/ml) in sufficient water to produce 100.00 ml of solution with a density of 0.982g/ml. What is the concentration of ethanol in this solution?
  9. chemistry

    You have a solution that contains 340ml of water and 20ml of ethanol. Find the concentration of ethanol in this solution in each of the following units: (density of water is 1.00 g/ml, density of ethanol is 0.789g/ml)
  10. chemistry

    When 25 mL of C2H5OH (density 0.80 is dissolved in water to prepare a 250 mL solution, the density of the solution was found to be 0.950 Calculate a. Molarity of pure ethanol; b. Molarity of ethanol in the final solution; …

More Similar Questions