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Essay Available:
Pages:
2 pages/≈550 words
Sources:
No Sources
Level:
APA
Subject:
Life Sciences
Type:
Lab Report
Language:
English (U.S.)
Document:
MS Word
Date:
Total cost:
$ 7.92
Topic:

Melting Point Determination (Lab Report Sample)

Instructions:
format as following : Title: Purpose: Experimental: Experimental set-up and/or reaction(s) Results: Summary of results, tabulated or graphed data, etc.. Discussion: Discussion of the results, particularly if they were not what was expected, their validity and accuracy, sources of experimental error, etc.. Conclusion: Significant conclusions based on your results. please see the attachment ( I typed my results in red color) source..
Content:
MELTING POINT DETERMINATION Name: Grade Course: Tutor’s Name: (7, July 7, 2011) Melting Point Determination Title: melting point determination Purpose: to determine melting of an unknown substance and ensuring that it is identified Experimental: Determining melting point range for re-crystallized acetalide, a 50/50 mixture of pure acetalide, benzoic acid and melting point of unknown substances. Experimental set-up  Taking small amount of sample, putting it in the capillary tube, and mounting it on thermometer. Take the temperature at the initial start of melting of the substance. Heat the substance and take the temperature at the final melting of the substance. Repeat this process more than once to come up with a consistence results. Summary of Results SampleMelting Point Range In DegreesAcetanilide 8998Pure 50/50 Mixture Of Acetanilide And Benzoic Acid7894Unknown Substance107110.6Discussion According to the experiment that has been done, the melting range of the substance beginning with acetanilide is greater than 50 c. this means that the substance is not pure. There should be some impurities in the sample. This is evident compared to the pure melting point of a pure acetalide whose melting pint s higher than the one recorded. Impurities lowers the melting point and increases melting point range as can be seen in the experiment. The mixture of acetanilide and benzoic acid has been proved that the melting point range is...
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