Lab 2 - 3AL Section 203 March 11, 2008 Lab 2 Part 1: Sweta...

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3AL Section 203 Sweta Ramachandran March 11, 2008 19500958 Lab 2 Part 1: In this part of the lab, I used mixed melting points to find another student in my lab section with an unknown solid identical to mine (Compound 266). First, I found the melting point range for my compound, 186-187 ° C. Next, I found a lab mate (Elaine) with a solid (Compound 67) with a similar melting point, 187-189 ° C. However, after mixing the two compounds, the melting point range was 164-166 ° C. This led me to conclude that this compound was not identical to mine because the mixed melting point was significantly lower than the two individual melting points. Consequently, I found another lab mate (Aleksandras) with a solid (Compound 62) with a similar melting point, 187- 188 ° C. After mixing the two compounds, the melting point remained about the same at 186-187 ° C. Thus, I concluded that the two compounds were identical because there was no broadening or depression of the melting point range. Part 2: The melting point-composition diagram from the class data is attached. The class data for the mixed melting point was not very reliable, and therefore the graph is pretty inaccurate. According to the class data, the eutectic point seems to be at the mole ratio
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Lab 2 - 3AL Section 203 March 11, 2008 Lab 2 Part 1: Sweta...

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