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How would you prepare a 500 ml lab stock of:

  1. Jan 15, 2008 #1
    1. The problem statement, all variables and given/known data

    How would you prepare a 500 ml lab stock of 20% (w/v) SDS

    That is all that is stated in the problem.

    2. Relevant equations

    I'm assuming for w/v the volume would be 0.5L but the weight I'm not sure.

    3. The attempt at a solution

    0.5L x .20 = .1g SDS / .5 L .. is that correct? doesn't make sense to me.

    Please help!
  2. jcsd
  3. Jan 15, 2008 #2


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    Science Advisor
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    What does 20% SDS (w/v) mean? Once you know that, the answer will present itself...
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