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Chemistry question - help me out

Discussion in 'Pre-Medical - MD' started by SuperFly123, Jul 24, 2006.

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  1. SuperFly123

    SuperFly123 Junior Member
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    hey all,

    i have a basic chem question..
    im trying to add an inhibitor solution to my cell culture and i need some help preparing it. i want to prepare a solution of 100 microMolar. i have 1 mg of the powder and the volume in which i want to place my inhibitor solution is 2 mL. the MW of the inhibitor is 270 g/mole

    i know i have 3.7x10^-6 moles of the inhibitor. if i add the 1 mg of the inhibitor to 37 mL of water i will have the solution of 100 microMolar. however, what i am wondering is if i have 2 mL of media that i want to add my inhibitor to, at what concentration should i prepare the solution and how much inhibitor solution should i add...

    does this make sense? sorry, ive forgotten my basic chem and my brain is fried right now.


    Moderator note: SDN is not to be used as a homework help service. Please approach your professors, teaching assistants, and friends from class if you are in need of assistance.
     
  2. jsnuka

    jsnuka Senior Member
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    Isn't this like a dilution problem?

    m1v1=m2v2

    You might want to try the MCAT questions thread. I am sure there are folx who will jump all over this question for you.

    Good luck!!! :luck:
     
  3. Johannen

    Johannen Weathered Wayfarer
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    add .54 milligrams to your 2mL water, and you'll have your concentration.
     
  4. taloddar2002

    taloddar2002 Slacker
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    i get 0.054mg, but i could be wrong.
     
  5. Johannen

    Johannen Weathered Wayfarer
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    Ah, yes. You are right..

    blast these windows calculators.
     
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