Qualitative Analysis Lab Report #10 pdf - QUALITATIVE ANALYSIS REPORT PROJECT A Name Rukiya Umoja Date Sample Number 10 Project A Pb2 ions are present

Qualitative Analysis Lab Report #10 pdf - QUALITATIVE...

This preview shows page 1 out of 1 page.

Q UALITATIVE A NALYSIS R EPORT P ROJECT A Name: Rukiya Umoja Date: 04/29/16 Sample Number: 10 Project A: Pb 2+ ions are present Confirmation Tests: To 1 mL of the unknown, 10 drops of 6 M HCl were added. No precipitate formed. After stirring the mixture, it was centrifuged for 30 seconds. 1 drop of 6 M HCl was added. No more precipitate formed. The supernatant (SB) was transferred into a clean test tube. To SI.1, 3 drops of 6M acetic acid and 5 drops of 1M K 2 CrO 4 were added. A yellow precipitate formed confirming the presence of Pb 2+ ions. To PI.1, 2.5 mL of hot water and 2 drops of 6 M HCl were added. PI.1 was then heated in a boiling hot water bath for 3 minutes and centrifuged. The decantate was then removed.
Image of page 1

You've reached the end of your free preview.

Want to read the whole page?

  • Spring '16
  • Dr. S. Menon
  • Chemistry, clean test tube, Rukiya Umoja

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture