If your sample has impurities, would the melting point range be large or small. Explain why.
If your sample has impurities, would the melting point range be large or small. Explain why.
Why do impurities reduce the melting point measurement value and increase the measurement range?
Recrystallization: Percent error of melting point and how impurities affect melting point: Please explain both questions below: (Part A) During a recrystallization experiment, the literature melting point of a compound is 105-107 °C. The melting point temperature you obtain from your recrystallized compound is 103-105 °C. Which of the following would be the proper way to set up the percent error of your mp? (a) (104/106)*100 (b) [(106-104)/106] *100 (c) (107/105)*100 (d) [(107-105)/107] *100 (Part B) For a recrystallization experiment...
Why will your melting range be too broad on the high end of the melting point range if you heat the sample too quickly?
What are soluble impurities. (b) Do soluble impurities in solids effect the melting point of the sample? if so, what are the effects?(c) What are insoluble impurities? (d) Do insoluble impurities in solids effect the melting point of the sample? if so , what are the effects?
help pls Why do soluble impurities affect the melting point while insoluble impurities are expected not to affect the melting point? (3 points) Student ID: Section: Mention at least one technique that you have learned during 3210 Ta separating a mixture containing anthracene and toluic acid in 1:1 ratio. Assume luble in ether. Sketch an outline of the separation procedure you will perform in the lab (4 points)
How can you tell that a compound has decomposed on melting and how do impurities affect the melting point of a pure compound?
Explain why the melting point depresses and broadens when a sample is impure .
1. Why do soluble impurities affect the melting point while insoluble impurities are expected not to affect the melting point? (3 points) 2. Why cold solvents are preferred during recrystallization and when is recrystallization selected vs other purification techniques you have learned during 3210 labs. (3 points) 3. The solid compound "X" has two components (A and B). After heating the solid powder (X), one component (A) is left and the other component (B) evaporated directly. Comment on the nature...
1. You are conducting a melting-point determination to identify a compound whose handbook melting-point range is 112 - 114 °C. Comment on the purity of the sample, and the possible identity of the substance, when your experimental melting-point range is : A. 114 -116 °C B. 94 - 102 °C I would C. 102 - 103 °C
1. Why does Paraffin Wax has a broader melting point range compares to 1-Octadecene? 2. Continue the first question, suggest a reason for the ordering of the melting points you observed. Consider the types of intermolecular forces and molecular weights of each sample.