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: Residence Time of H2S in atmosphere

  1. Sep 12, 2009 #1
    1. The problem statement, all variables and given/known data

    Using the table of atmospheric composition and residence time , calculate the rate of input for N2 and H2S.
    Question 5 answers
    A)N2: 4.1 x 1015 mol/yr; H2S: 9.6 x 1013 mol/yr
    B)N2: 1.4 x 1014 mol/yr; H2S: 9.0 x 109 mol/yr
    C)N2: 4.1 x 1015 mol/yr; H2S: 9.0 x 109 mol/yr
    D)N2: 1.4 x 1014 mol/yr; H2S: 3.3 x 1012 mol/yr

    2. Relevant equations

    Residence time=N/R N=moles R= rate

    Residence time for H2S(1day), H2S(conc)=.05ppb

    3. The attempt at a solution
    I found out the first part fine. I am having a hard time finding the rate of H2S. I started of converting ppb into grams and then getting the moles and dividing by the residence time in years. Any help would be great.
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted