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

Homework Help: Separating salt and sodium carbonate help

  1. Nov 10, 2008 #1
    1. The problem statement, all variables and given/known data
    Given a mixture of salt and sodium carbonate, how could you determine the amount of sodium carbonate in the mixture?


    2. Relevant equations



    3. The attempt at a solution
    Salt and sodium carbonate are both soluble, so I would I use HCl to react with the Na2CO3 leaving the NaCl H20 and CO2? And then boil the salt water?
     
    Last edited: Nov 10, 2008
  2. jcsd
  3. Nov 10, 2008 #2

    mgb_phys

    User Avatar
    Science Advisor
    Homework Helper

    Not a chemist, but sodium carbonate must be acidic in water - could you just do a titration ?
     
  4. Nov 10, 2008 #3

    Borek

    User Avatar

    Staff: Mentor

    Quite the opposite, it will be slightly basic :smile:

    But titration (with a strong acid) is still a good idea.
     
  5. Nov 10, 2008 #4

    mgb_phys

    User Avatar
    Science Advisor
    Homework Helper

    Doh - Sodium Carbonate is washing soda, must be alkali!
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook