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

Chemistry Case Study Essay Sample

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

Chemistry Case Study Essay Sample

Liannys Polanco 02.05 Electron Arrangement and EMR: Line Spectra Lab Worksheet Before You Begin: You may either copy and paste this document into a word processing program of your choice or print this page. Procedure

Access the virtual lab and complete the experiments.
Part One (Flame Test):
Create and complete a data table for Part One of the lab. It should include the name of the element (or unknown) examined and the color of the observed flame

Identify each unknown from Part One of the lab and briefly explain why you identified each unknown as you did. The first unknown element sodium knew it was because she got yellow and each element corresponded a unique color. The second element potassium knew it was because I acquired a blue color, in the experiment verified that each element corresponded to a different color. Part Two (Spectroscopy):

Create and complete a data table for Part Two of the lab. It should include the name of the element, the colors, and the wavelength values of the observed lines. Describe the line spectrum of the star. Give the color and wavelength value of the five brightest lines in the spectrum. Line in star spectrum Color Wavelength

1 violet 405nm
2 violet 410nm
3 Violet/blue 420nm
4 blue 440nm
5 blue 445nm
6 green 500nm
7 Green/yellow 550nm
8 Green/yellow 560nm
9 yellow 580nm
10 orange 620nm
11 orange 630nm
12 red 650nm
13 red 680nm
14 red 690nm
15 red 700nm
16 Dark red 710nm
17 Dark red 715nm
18 Dark red 725nm

Conclusion:
Explain, in your own words, why different elements produce different colors of light when heated. Each element has a unique electron configuration. When heated, the electrons are energized and this leads to a higher quantum state. The color depends on the distance you have and the original electron configuration. Why do you think elements must be heated before they emit colored light?The light color is the electronic transitions between orbitals. When an electron drops to a lower orbital energy, releasing a photon, which we perceive as light. For electrons to reach higher energy orbital energy should be applied. To release energy as light, the first element to be absorbed energy. The energy absorbed by the material may be in the form of electromagnetic radiation, heat or electricity. Electrical conduction electrons absorb energy and higher energy levels move. What element do you think is the most abundant in the star that you observed in Part Two? Explain your answer. Hydrogen is the most common element it goes through nuclear fusion, which turns them into new elements and number of the atoms increases rapidly.

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