Thursday, February 28, 2013

Identifying Organic Compounds Lab

Identifying Organic Compounds Lab

Objective:
The objective is to use indicators to test for the heraldic bearing of organic compounds.

Theory:
The major types of organic compounds in any(prenominal) common foods are proteins, carbohydrates, lipids, and nucleic acids.
In this lab we used indicators to flummox organic compounds. An indicator is any substance used to wait on in the classification of other substance. When an indicators color changes it shows the presence of an organic compound.
The purpose of using distilled water as one of the substances is that it is the encounter so you can see the differences. Also, in the substances distilled water was change integrity in with them.
The control group in part C is distilled water.
The purpose of washing the test pipeworks thoroughly is so the chemicals entert cross contaminate and affect the outcome of another section of the lab.
Hypothesis:
1.If a substance contains lipids then when rubbed onto a paper bag a transparent or obscure spot will appear.
2.Is a substance contains starches then when atomic number 53 solution is added to the substance it will change from yellow-brown to blue-black.
3.If a substance contains sugars then when Benedict solution is added and heat is utilise it will turn traffic light colors (red, orange, and yellow).
4.

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If a substance contains proteins then when Biuret reagent is added the substance will change easterly egg colors (lavender, yellow, and green).

Materials:
8 test tubes
Test tube rack
Test tube holder
Glass stirring rod
Sharpie chump
acerbic water bath
Iodine solution
Brown paper bag
Biuret Reagent
Benedicts solution
20 ml each:
1.Honey solution
2.Egg white and water solution
3.gelatine and water solution
4.Melted butter and water solution
5.Apple succus and water solution
6.Corn oil and water solution
7.Distilled water
8.Unknown solution

influence:
Part A: Testing for Lipids
1.Obtain materials from the basket at the back off class. Use a sharpie marker to label the test tubes...If you want to get a copious essay, order it on our website: Orderessay



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