Synthesis of Diphenylacetylene Laboratory Report Write a standard laboratory rep
ID: 589770 • Letter: S
Question
Synthesis of Diphenylacetylene Laboratory Report Write a standard laboratory report following the guidelines given in the syllabus. Refer to the laboratory syllabus for the template for writing the report. The lab report should be word processed using 12 point font. Include the following: Equation for the synthesis (Do not include the mechanism, just the reaction equation.) Equations can be neatly hand-drawn-they do not need to be computer generated. A Table of Reagents and Products using the exact amounts of reagents and products from the laboratory data collected. Some of this table will be a duplicate of the table generated for the pre-lab assignment, but some of it will be based on the data generated in the lab. You are using a student generated sample of crude 1,2-dibromo-1,2-diphenylethane in this experiment. Use physical appearance and melting point to discuss the purity of the 1,2-dibromo- 1,2-diphenylethane. Why was the crude sampie (generated from trans-stilbene and bromine) not recrystallized? How would the purity of the 1,2-dibromo-1,2-diphenylethane affect your yield of O diphenylacetylene? Use physical appearance and melting point to discuss the purity of the diphenylacetylene. Discuss your yield of diphenylacetylene. What were potential sources of loss of material in your experiment other than personal error? Calculate the yield of the reaction. Show your calculations. The yield in grams (and moles) and the experimental melting point range should be included in the Table of Reagents and Products.Explanation / Answer
Synthesis of diphenyl acetylene from 1,2-dibromo-1,2-diphenyl ethane
In the lab experiment, the crude alkyne product formed is not recrystallized. This is due to the fact that the product acetylene is a low melting solid and easily forms an oil upon heating. Thus to avoid this, the crude sample is not recrystallized. Impurities may come into the formed compound diphenyl acetylene in oil form and this step is not carried out. the product is dried at room temperature.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.