March 29, 2024, 04:12:42 AM
Forum Rules: Read This Before Posting


Topic: Determining the mass of elements in a coin.  (Read 983 times)

0 Members and 1 Guest are viewing this topic.

Offline Mati

  • New Member
  • **
  • Posts: 4
  • Mole Snacks: +0/-0
Determining the mass of elements in a coin.
« on: November 28, 2019, 03:01:48 PM »
In my chemistry class we are starting some projects and I have come across an issue, I'm not sure how I could determine the mass of nickel or iron in the coin (10 pence).

I can easily find the mass of manganese by colorimetry but when it comes to the other elements (mainly iron and nickel) I can't seem to find a method to successfully determine their mass.

At first I thought I found a solution for nickel, I found that I could use DMG as it forms a colored complex with nickel(II) and I could use citric acid to prevent the DMG from forming a complex with the iron, however from what I read this has to be done in an ammonia solution and since I would be likely dissolve the coin in nitric acid would this produce products that will prevent this reaction or interfere? and would a titration with DMG even be viable for my aim?
Would a gravimetric analysis be better to do for the mass of nickel with DMG?

Offline chenbeier

  • Sr. Member
  • *****
  • Posts: 1348
  • Mole Snacks: +102/-22
  • Gender: Male
Re: Determining the mass of elements in a coin.
« Reply #1 on: November 28, 2019, 03:13:29 PM »
For every element analytical methods available.

Sponsored Links