Deepa( Exam prep question)

Popular questions and responses by Deepa( Exam prep question)
  1. chem(isotopic abundance)

    The average atomic mass of iridium is 192.22u, if iridium-191 has an atomic mass of 190.961u and an isotopic abundance of 37.3% and iridium-193 is the only other natural occuring isotope, what is the atomic mass of iridium-193? I tried but I don't think I

    asked on January 24, 2013
  2. math

    the sum of two twin numbers is 60 what are the number

    asked on January 24, 2013
  1. chem(isotopic abundance)

    oh 100-37.3 okokok thxx

    posted on January 24, 2013
  2. chem(isotopic abundance)

    where did u get 627 from?

    posted on January 24, 2013