Question 2 Compare the sharp melting point of a pure compound versus the melting range of a mixture. Use the data in Dat

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Question 2 Compare The Sharp Melting Point Of A Pure Compound Versus The Melting Range Of A Mixture Use The Data In Dat 1 (24.93 KiB) Viewed 157 times

Question 2 Compare The Sharp Melting Point Of A Pure Compound Versus The Melting Range Of A Mixture Use The Data In Dat 2 (35.04 KiB) Viewed 157 times

Question 2 Compare The Sharp Melting Point Of A Pure Compound Versus The Melting Range Of A Mixture Use The Data In Dat 3 (13.77 KiB) Viewed 157 times

Question 2 Compare the sharp melting point of a pure compound versus the melting range of a mixture. Use the data in Data Table 3 and Data Table 4 to support your answer. B 1 E т T o Wor) Question 3 Explain the effect percent composition of a mixture has on its melting point. Then: a. Interpreting your results based on the assumed eutectic point of composition of a 50/50 mixture, state the percent composition of your Trial 1 mixture sample Support your answer using the graph in Photo 1 b. Based on the graph in Photo 1. what would the approximate percent composition be of a mixture of tetracosane and 1- tetradecanol if the upper level of the melting point was 37°C? HE T. O Wort

Question 4 Why is it necessary to use fresh room temperature water for each trial, instead of simply placing the crystallized sample back into the hot water bath? Why is it necessary to use a fresh sample to determine melting point instead of using the original sample that was already melted? 8 ET T O Word(s) Question 5 How would the rate of heating a sample influence the recorded melting points? Would your recorded melting point be too high or too low with a faster rate of heating? What would be the probable effect on the melting point range? Is the chemical identity of a substance altered when it melts? Describe any possible sources of error for this exercise. BET T Words

Data Table 3. Melting Points of Tetracosane, 1-tetradecanol, and the Mixture Melting Point of Tetracosane (C) Melting Point of 1.Tetradecanol ("C) Trial 1 49 37 Melting Point of Mixture (C) 41 Trial 2 51 39 44 Trial 3 48 38 43 Average 49 38 of the 3 Trials