Melting Points

dissolve Point Determination Objective The objective was to come in the unvalued pith by melt register determination. organic Chemicals and Structures The chemicals used in this lab include: gum gum benzoin C14H12O2 Trans-cinnamic acid C9H8O2 | | | | urea CH4N2O Procedure The secern was divided into ternary aggroups. to each one group was prone a sample of a merge. Group one was given gum benjamin, group 2 was given trans-cinnamic acid and group three was given Urea. sever only wheny group was given 3 get supply and inured a sm both sample of their assigned compound into the watch ice rink. On the second watch icing a mixture of the assigned compound and an unknown compound was determined on the watch glass. On the third watch glass a sample of just the unknown was placed. All samples were immoral into a fine powder with separate stirring rods for each(prenominal) sample. Each sample was then paced into a capillary tube and all three tubes were placed into a run extremum appliance and heated. The thermometer and samples were watched closely and each samples initial and final melting particulars were recorded. later the lab was complete the three groups recorded the melting points of all three compounds in class.

The results are shown in the spare-time activity tables: bosom| Melting pad (0C)| asa dulcis| 134-1360 C| Benzoin + unknown| 135-1390 C| cabalistic| 130-1320 C| Substance| Melting Range (0C)| Trans-cinnamic acid| 58-1350 C| Trans-cinnamic acid + unknown| 70-1200 C| Unknown| 5 5-1350 C| Substance| Melting Range (0C)| ! Urea| 142-1440 C| Urea + Unknown| 138-1440 C| Unknown| 142-1440 C| give-and-take Urea was determined to be the unknown substance impart on the data recorded from all three substances. Benzoin had a melting range close to urea alone trans-cinnamic acid had a very low melting initial melting point and a much wider melting point range. The melting range of Urea...If you want to get a comprehensive essay, order it on our website: OrderEssay.net

If you want to get a full information about our service, visit our page: write my essay