We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy

Identification of Metallic Ions

essay
The whole doc is available only for registered users OPEN DOC

A limited time offer! Get a custom sample essay written according to your requirements urgent 3h delivery guaranteed

Order Now

This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor.

obseRvations

The color of the flame is expected to be as follows:

Metallic ionFlame color

Sodium Na+
Strontium Sr2+ Potassium K+ Lead Pb2+ Barium Ba2+ Copper Cu2+ Lithium Li+ Calcium Ca2+ Unknown

Questions

A. All chemical used in this test are binary compounds. What portion of the periodic table is responsible for the color observed?

The metals are responsible for the Color change

B. In cooking over an open flame, a yellow flame is often observed when some food is spilled into the flame? What is most likely responsible for the yellow flame color?

Sodium within the food is likely the cause of this color change. The reason for this assumption is that during this flame test sodium changed the flame to a yellow color

C. What problems might be associated with using flame color for identification purposes?

The cotton swab or the Well plate may be contaminated if not cared for properly. You may also have not soaked the cotton swap enough to allow the chemical to be burned and you are burning the cotton swab itself and cause you to have false results. Also you may have a difficult time noticing the actual color change of the flame.

D. Explain how the observed colors are produced?
As the substances are heated, the electrons move to higher energy levels by absorbing the heat. This state is unstable and the electrons tend to return to their ground state and release the absorbed heat energy in the form of electromagnetic energy. A portion of this energy being released is in the visible light region.

Related Topics

We can write a custom essay

According to Your Specific Requirements

Order an essay
Get Access To The Full Essay
icon
300+
Materials Daily
icon
100,000+ Subjects
2000+ Topics
icon
Free Plagiarism
Checker
icon
All Materials
are Cataloged Well

Sorry, but copying text is forbidden on this website. If you need this or any other sample, we can send it to you via email.

By clicking "SEND", you agree to our terms of service and privacy policy. We'll occasionally send you account related and promo emails.
Sorry, but only registered users have full access

How about getting this access
immediately?

Become a member

Your Answer Is Very Helpful For Us
Thank You A Lot!

logo

Emma Taylor

online

Hi there!
Would you like to get such a paper?
How about getting a customized one?

Can't find What you were Looking for?

Get access to our huge, continuously updated knowledge base

The next update will be in:
14 : 59 : 59
Become a Member