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Homework Help: How to find amount that evaporated

  1. Jan 20, 2009 #1
    1. The problem statement, all variables and given/known data
    I am working on a lab about the latent heat of vaporization of nitrogen and a part of it needs me to find the amount of liquid nitrogen that had evaporated. and it gives me the density of liquid nitrogen which is 0.0807 g/mL. wouldn't I just take my initial amount 299.7 g and subtract the final amount 159.6 g to get the amount evaporated? how would i find it using the density

    2. Relevant equations

    3. The attempt at a solution

    i just subtracted the two and got 140.1 but i feel like this is wrong since i didnt use the density
  2. jcsd
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