Lab report on Paper Chromatography

Length: 4 Pages 1110 Words

CONTENTS 1. Abstract-Hypothesis page 2 2.Background information page 3 3. Materials and constituents page 5 4. Procedure page 6 5. Results page 8 6. Error analysis page 11 7. Conclusion page 12 1. Abstract-Hypothesis The purpose of this lab report is to explain what exactly happened to the labs, the time that the experiment was executed and apply the results and conclusions that were deduced. Also, specify the errors that might have happened during the execution of the experiment. In the following experiment is going to be proved that a paper can separate a mixture of colours and that every colour reacts with a different way when put onto the paper strip. 2.Background Information Chromatography is the name given to a method, which is very widely used for the separation of mixtures of chemicals and biochemicals, that depends on how fast a substance moves in a stream of gas or liquid past a stationary material to which the substance may be slightly attracted. Chromatography serves mainly as a tool for the examination and separation of mixtures of chemical substances. Chromatograph Continue...

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We find the middle of each colour in both sides of the folded paper strip. Once all of the above criteria have been met, chromatography can be a simple tool for separating and comparing chemical mixtures. It is used for the purification and isolation of various substances. If a larger beaker was used, a longer paper strip could have been used. Then using the metric ruler we measure the distance between the initial and the final position (till the middle of each colour) of every dye. Also, we place 10 drops of each dye into another beaker, in order to have the mixture of the three colours. Lines pulled by pencil Mark where the paper strip is folded Afterwards, we place separately, a small amount from every colour, G. With a toothpick we make one dot of each colour in the one line (three different dots in the same line) and one dot of the mixture in the other line. Conclusion The proposed hypothesis was correct. orange 2) Congo red 3) Light green 4. Also, another mistake, which may have happened, is the jolt wag of the beaker, the time that the paper strip was inside the solvent. Procedure The first step of the experiment, is to take the paper strip and fold it exactly in the middle. A change in a chemical substance produced by a chemical or biological reaction often alters the solubility and migration rate. The main requirement, though, of the solvent is to dissolve the mixture needing to be separated.