chem

An aspirin tablet weighing 0.650 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved
the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric flask. Exactly 3.00 mL
of the solution was pipetted into a 100 mL volumetric flask and diluted to the mark with FeCl3 solution.
The concentration of the diluted solution is

  1. 👍 0
  2. 👎 0
  3. 👁 66
asked by Un
  1. The question leaves a little to be desired. Do you want the concn in grams/mL, grams in total volume, molarity, and/or do you want the concn of the tablet?
    I suspect you want the concn in g/mL in the final 100 mL volumetric flask. If that isn't so then clarify the question and repost.
    0.650 x 0.682 = ?? g ASA in the tablet.

    ??g ASA placed in 250 mL flask. concn now ??g/250 mL = xx g/mL.
    We take 3 mL and dilute to 100 so it is not xxg/mL x 3/100 = yy g/mL.
    You can divide the yy by 180.16 to obtain the mols/mL and then change to to mols per 1 L to get M.Check my thinking. Check my work.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. chem

    An aspirin tablet weighing 0.650 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric

    asked by un on April 20, 2008
  2. chemistry

    An aspirin tablet weighing 0.475 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric

    asked by leah on January 26, 2009
  3. Chemistry

    An aspirin tablet weighing 0.475 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric

    asked by on January 21, 2011
  4. college chemistry

    An aspirin tablet weighing 0.502 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric

    asked by Alexander on January 24, 2010
  5. chemistry

    An aspirin tablet weighing 0.502 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric

    asked by John on January 27, 2008
  6. Chem.

    An aspirin tablet weighing 0.400 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric

    asked by Joanne on April 18, 2009
  7. chemistry

    An aspirin tablet weighing 0.502 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric

    asked by Anonymous on January 28, 2008
  8. chem

    An aspirin tablet weighing 0.475 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric

    asked by CHEMCHEM on April 18, 2011
  9. chemistry

    An aspirin tablet weighing 0.548 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric

    asked by jared on May 10, 2007
  10. molarity

    An aspirin tablet weighing 0.475 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric

    asked by christine on February 16, 2007

More Similar Questions