State the melting point of caffeine

Reference no: EM13186632

Did an experiment in Organic Chem Lab titled "Isolation of Caffeine from Tea" In the experiment, students had to isolate caffeine from tea leaves using a simplified Soxhlet extractor. The crude and purified caffeine obtained was analyzed by thin layer chromatography. A question from the packet asked

1) Give two reasons why the product is concentrated in the distillation flask during a continuous solid-liquid extraction.

2) what difficulties may be encounter during the determination of the melting point of caffeine?

Reference no: EM13186632

Questions Cloud

What was the speed on each part of the trip : During the first part of a trip, a canoeist travels 76 miles at a certain speed. The canoeist travels 24 miles on the second part of the trip at a speed 5 mph slower. The total time for the trip is 4 hours. What was the speed on each part of the t..

Compare and contrast the history of amazon-nyse etc : Histories of the following MNEs/industries, from their beginings to the present day, such Fedex, Amazon, NYSE (New York Stock Exchange), Pharamaceutical Industry, General Electiric, Lenovo. Compare and contrast the history of at least two of these..

What is the bullets acceleration : A force of 2.5N is exerted on a 10.0 gram rifle bullet. What is the bullets acceleration?

Use a balanced scorecard system : Why is it reasonable to use a balanced scorecard system to measure staff performance? How does this approach mitigate concerns about measurement dysfunction?

State the melting point of caffeine : Give two reasons why the product is concentrated in the distillation flask during a continuous solid-liquid extraction. 2) what difficulties may be encounter during the determination of the melting point of caffeine?

State what is the half life of the reaciton : gave straight line relationship. It took 52.3 seconds for concentration of A to decrease from 0.667 M to 0.117 M. What is the half life of the reaciton when [A]o = 0.667 M?

Pros-and-cons for less developed-countries of mne investment : Much of the discussion regarding the effects of MNE investment on "host" countries has focused on the pros-and-cons for less developed-countries (LDCs). Access these arguments in terms of post-WWII experience up to the present day, particularly th..

State separating eucalytus oil : Based on the structure and boiling point(176-177C) of Eucalytol. what aspects of this molecule allow it to separate from hexane? And which of the following temperature option of is best for separating eucalytus oil and why?

Find the stopping distance required by an alfa romeo : cording to Car and Driver, an Alfa Romeo going 70 mph requires 177 feet to stop. Assuming that the stopping distance is proportional to the square of the velocity, find the stopping distance required by an Alfa Romeo going at 45mph and 130mph.

User Account

All Pages