Chemical Forums

General Forums => Generic Discussion => Topic started by: terre on October 07, 2015, 04:45:59 PM

Title: Determining the presence of Na+ ions within paper.
Post by: terre on October 07, 2015, 04:45:59 PM

Who was that famous scientist who took students' notebooks and by using a torch could tell whether the students had learnt or not?

Title: Re: Determining the presence of Na+ ions within paper.
Post by: Arkcon on October 07, 2015, 04:56:22 PM

What would be the logic behind this application?  If they cried onto the pages, then they learned?

You can look up the flame test, you may find a reason why this test isn't a very good one.

Title: Re: Determining the presence of Na+ ions within paper.
Post by: terre on October 07, 2015, 05:18:29 PM

People sweat and sweat stay on the paper. If you use the flame test, you can determine Na+ ions. It is important, you can't ruin students' notebook. This test is not very good and don't work all the time.