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Isotonic Solution

  1. Feb 9, 2010 #1
    1. The problem statement, all variables and given/known data
    How many grams of NaCl should be added to 1L of water to make an isotonic solution?

    2. Relevant equations

    3. The attempt at a solution
    1L of water has 1000g/L= 55.5 Moles.
  2. jcsd
  3. Feb 9, 2010 #2


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    Staff: Mentor

    What "isotonic" means?

  4. Feb 9, 2010 #3


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    Gold Member

    The answer is 9, more or less, the part relating to more vs less and the amount (grams vs kilograms) are left up to you to find out.

    I know Borek is going to have a conniption over this :biggrin:

    Suppose you were Mark Wahlberg from movie The Shooter, and you needed to figure out how much salt to add to water to infuse into you as an IV solution. How many tea spoons do you think you will need to add to make it an isotonic solution?
    Last edited: Feb 9, 2010
  5. Feb 10, 2010 #4


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    Staff: Mentor

    So you are wrong :yawn:
  6. Feb 10, 2010 #5
    ok, 9grams, thanks
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