1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
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: 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


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    What does 20% SDS (w/v) mean? Once you know that, the answer will present itself...
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook