Deepika Asked a Question
April 9, 2020 10:59 ampts 20 pts
a reference material is required to be prepared with 4ppm calcium. the amount of CaCO3 (molecular weight = 100) required to prepare 1000g such a reference material is
  • 1 Answer(s)
  • 0 Likes
  • 1 Comments
  • Shares
  • Eduncle thankyou

    Dear Deepika, 

    Greetings!!

    4 ppm Calcium means 4000 μg Calcium. So in CaCO3 
    40 gm Calcium is present in 100 gm CaCO3, so 4000 μg Calc...

    Show more
    Likes(1) Reply(0)