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Homework Help: Consentration question(basic chemistry)

  1. Dec 10, 2008 #1
    we desolve 3.576 gr of KCL in water
    and complement the volume to 200ml
    what is the concentration of the solution??
  2. jcsd
  3. Dec 10, 2008 #2


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    Do you understand what concentration actually is? It measures the amount of ssomething in some volume. You could measure it in moles per litre, grams per mL etc. Think about what it means and see if you can try to solve it yourself.
  4. Dec 10, 2008 #3
    i know how to calculate the number of moles in 3.576 gr of KCL
    but i dont know whats the volume of that in the solution?

    i could calculate the number of moles per litter
  5. Dec 10, 2008 #4


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    Gold Member

    Good! Then you can calculate Molarity, which is moles of solute in 1 liter of solution.
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