1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    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!

Adding Concentrations

  1. Sep 20, 2009 #1
    1. The problem statement, all variables and given/known data

    http://carlodm.com/images/1.png [Broken]

    2. Relevant equations

    I tried using the formula: ( C1V1 + C2V2 ) / (V1 + V2)

    3. The attempt at a solution

    I keep on getting .0761 M. anything wrong with this? (YES I changed mL to L)
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Sep 20, 2009 #2


    User Avatar
    Homework Helper
    Education Advisor
    Gold Member

    The expression for the resulting formula looks good. Be aware that one formula unit of Na2SO4 , sodium sulfate, has two formula units of Na for each unit of compound.
  4. Sep 20, 2009 #3

    That solved my problem!!!!
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook