spectroscopy and emission spectra

spectroscopy and emission spectra

CVA Forensic Science

Module 2 – Microscopes & Organic Analysis

Assignment 2.22: Spectroscopy and Emission Spectra

Introduction

Spectroscopy is the analysis of light spectra and the way in which light interacts with matter. When light is analyzed it is commonly separated into its component colors. Each color has a characteristic wavelength. The wavelength is the distance between the beginning and end of a complete cycle of the light wave or the distance from one crest to the next.

This assignment shows types of spectroscopic tests: the flame test, emission spectra, and absorption spectra.

Flame Test

Flame Test Standards

Barium

Calcium

Sodium

Rubidium

Potassium

Lithium

Identify the Unknowns

10 points EACH (30 pts)

Unknown 1

Unknown 2

Unknown 3

Emission Spectrum

Emission Spectrum Standards

Sodium

Neon

Mercury

Helium

Identify the Unknowns

10 points EACH (20 pts)

Unknown 1

Unknown 2

Absorption Spectra

Absorption Spectra Standards

Calcium

Hydrogen

Iron

Magnesium

Identify the Unknowns

*This time the unknowns may be a mixture of MORE THAN ONE standard!

25 pts EACH (50 pts)

Unknown 1

Unknown 1

Unknown 2

Unknown 2

Module 2 – Microscopes & Organic Analysis

Assignment 2.22: Spectroscopy and Emission Spectra

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