Welcome

Anti Essays offers essay examples to help students with their essay writing.

Sign Up

Flame Test Essay

Open Document

Below is an essay on "Flame Test" from Anti Essays, your source for research papers, essays, and term paper examples.

To determine the colours of the Atomic Emission Spectra of several metallic ions by the flame test.

Theoretical background:

Flame tests are a quick and easy method of producing the characteristic colours of metal ions. Metal salts contain loosely held electrons that are easily exited on heating. These exited electron then return to a lower energy level by emitting energy in the visible portion of the spectrum, which can be seen as a coloured flame. This colour can be used to determine which ion is being burnt as each ion emits a certain specific combination of wavelengths which correspond to specific colours.

Variables:

Independent Variable:

Metal Salt

Dependent Variable:

Colour of the flame

Controlled Variable: Quantity of the metal salt taken.

Apparatus:

* Safety goggles

* Latex gloves

* Nichrome wire

* Bunsen burner

* Hydrochloric acid

* Wash bottle(with distilled water)

* some metal salts

> sodium chloride

> sodium carbonate

> sodium sulphate

> lithium chloride

> potassium chloride

> potassium sulphate

> strontium chloride

> calcium sulphate

> calcium carbonate

> calcium chloride

> copper carbonate

> copper chloride

* Spectroscope

* Cobalt glass

Safety Precautions:-

* Safety goggles and latex gloves must be worn.

* Hydrochloric acid is corrosive and can cause severe injury. If you spill acid on yourself, immediately flush the affected area with water for 2-3 minutes and notify the teacher. If acid should get into your eyes, begin flushing with water immediately and continue doing so for at least 20 minutes. If there is an eye wash fountain equipped with continuously running water in the laboratory, use it. If acid is spilled on the laboratory bench or on the floor, neutralize the spill with solid sodium bicarbonate, NaHCO 3 , before wiping it up with sponges or paper towels. The acid has been neutralized when bubbles of gas no longer form after addition of the...

Show More


Citations

MLA Citation

"Flame Test". Anti Essays. 15 Dec. 2018

<http://parimatch-stavka7.com/free-essays/Flame-Test-311041.html>

APA Citation

Flame Test. Anti Essays. Retrieved December 15, 2018, from the World Wide Web: http://parimatch-stavka7.com/free-essays/Flame-Test-311041.html


Battle Arena Toshinden Episode 1 English Dubbed | 民族舞基本课件-蒙古舞-01、手位组合.mp4 | Bits and Pieces