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Unformatted text preview: The capillary tube was inserted into the melting-point apparatus. Heat was applied at a uniform rate with voltage 2 for 10 minutes. After 10 minutes have passed, heat was increased by a rate of 2 voltages for every 3 minutes that passed. The sample must constantly be observed to make sure the melting-point range is easily discernable. Results and Conclusions The experimental melting-point range obtained was 116-122C. The literature melting-point range for benzoic acid is 118-122C. There is only a 2C difference between the lower ranges of the experimental and literature melting-point range. This slight difference may be attributed to air pockets trapped between the benzoic acid. The air may have lowered the melting point range slightly, however the higher range of the melting-point range is correct....
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This note was uploaded on 02/16/2011 for the course CHEM 263 taught by Professor St-hilarie during the Spring '11 term at CUNY City.
- Spring '11
- Organic chemistry