Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Hydrochloric Acid

  1. Sep 18, 2004 #1
    Could someone please give me a hand with this:

    A solution of hydrochloric acid was standardised by titration and found to be 0.123 M. How much water must be added to 1dm3 of this solution to make it exactly:
    a. 0.1M and b. 0.12M ?

    Thanks ppl
     
  2. jcsd
  3. Sep 18, 2004 #2

    chem_tr

    User Avatar
    Science Advisor
    Gold Member

    Hello,

    One liter of 0,123 M HCl means 0,123 mole of HCl is present in the solution. So if you want a) 0,1 M, you'll need to add: 0,1=(0,123/V)=1,23; and therefore 230 milliliters.

    b) A 0,12 M of HCl solution from 0,123 M solution is prepared by adding: 0,12=0,123/V=1,025; and therefore, 25 milliliters of water.

    Please note that you already have 1000 milliliters of solution, so the resulting new volume indicates the amount added, starting from 1000 milliliters.

    Regards, chem_tr
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Hydrochloric Acid
  1. Hydrochloric acid (Replies: 14)

Loading...