How many mL of concentrated HCl would be required to make 200mL of a 4M solution? Specific gravity = 1.2, assay = 40%

  1. 👍 0
  2. 👎 0
  3. 👁 60
asked by Yue
  1. I would first convert 40% HCl into molarity.
    40% (I guess that's w/w) HCl means 40g HCl/100 g solution.
    40g/36.5 = approx 1.10 mols HCl
    mass = volume x density so volume = mass/density. That 100 g soln = 100/1.2 = approx 80 mL or 0.08 L; therefore, the molarity is 1.1/0.08L = about 14 M but you need to go through and redo all of these numbers more accurately.
    Then use the dilution formula of
    mL1 x M1 = mL2 x M2.
    200 x 4 = mL2 x 14
    Solve for mL2.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. science

    commercially available concentrated H CL contains 38% H CL by mass (a) what is the molarity of this solution if the density in 1.19gm/l (b) what volume of concentrated HCL is required to make 1l of 0.1M HCL?

    asked by anila on July 27, 2014
  2. Chemistry

    You are using concentrated hydrochloric acid solution (12.0 M)to make 445.0 ml of a 5.85 M solution. Calculate the number of milliliters of concentrated HCl required to make the solution.

    asked by Tanya on March 7, 2013
  3. chemistry

    Explain how you would prepare the following dilute solutions from the more concentrated ones: a. 200ml of .500M HCL from a 6.00M HCL solution.

    asked by cameron on April 4, 2011
  4. Chemistry

    What volume of concentrated hydrochloric acid (12.0 M HCl) is required to make 2.0 liters of a 3.0 M HCl solution?

    asked by Wilson on March 25, 2016
  5. chemistry

    Concentrated hydrochloric acid is a 38% solution of hcl in water and has a density of 1.18g/ml. How many milliliters of concentrated hydrochloric acid are needed to prepare 500ml of a 1:200 hcl solution? My calculation 500ml x

    asked by Fai on August 9, 2012
  6. Chemistry

    Concentrated HCl is 12.0M(mol/L) and you want to make a liter of 1.00 M HCl. What volume would you need of this concentrated solution so you would have one mole of HCl?

    asked by Teresa Johnson on May 15, 2017
  7. chemistry

    how much ml of concentrated hci required to make 0.5N hcl solution? /

    asked by Ashwin on March 24, 2015
  8. chemistry

    Hydrochloric acid is usually purchased in concentrated form with a 37.0% HCL concentration by mass and a density of 1.20g/mL. How much of the concentrated stock solution in milliliters should you use to make 2.5L of 0.500M HCL

    asked by Monique on November 6, 2011
  9. Chemistry

    24.5 mL of concentrated HCl is diluted to make 455 mL of .256 M solution. What is the molarity of the concentrated HCl?

    asked by DJ on October 25, 2011
  10. chemistry

    2. A researcher is often required to prepare solutions in the lab. Typically, a lab provides a concentrated solution. This solution must be diluted to the proper concentration. Hydrochloric acid is a common stock solution that is

    asked by TJ on September 10, 2014

More Similar Questions