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7. (5 pts) How many theoretical plates does a simple distillation have? Please put your answer...
7. (5 pts) How many theoretical plates does a simple distillation have? Please put your answer in the box provided below.
1. A student carried out a simple distillation on a compound known to boil at 124°C and reported an observed boiling point of 116°-117°C. TLC comparison of the product showed that the compound was pure, and a calibration of the thermometer indicated that it was accurate. What procedural error might the student have made in setting up the distillation apparatus? 2. Which method is better for purifying a mixture of two liquids that boil at nearly the same temperature: simple...
5. Distillation: how does it work, differences between simple and fractional distillation. 6. Crystallization: how to choose solvent, how to crystallize substance. Vacuum filtration. 7. Extraction: how to predict which layer is organic and which is aqueous, how to separate neutral compound from acidic/basic compound. 8. Chromatography: basic principles, various techniques (TLC, column, GC), connection between polarity of substance, polarity of solvent and R 9. Mechanisms: S1, S,2, elimintaion of water from alcohols (keep in mind than several products are...
A chromatogram gives an ideal Gaussian peak with t,= 8.60 min and w 0.17 min. How many theoretical plates does the column have? plates N= What is the plate height of the column in millimeters if the column is 11.7 cm long? H= mm
To obtain a resolution of 1.50, how many theoretical plates must a packed column have for two peaks which elute at 5.42 and 5.63 minutes, where tm = 1.00 min? With a resolution of 1.50, are these peaks considered to be resolved?
questions: 2,3, 4 and 5 please 2. How would the graph of temperature versus volume distilled appear for a perfect separation of methanol (bp 65.4°C) and toluene (bp 110°C) using an efficient frac- tionating column? 3. The efficiency of a fractional distillation is given as the number of cycles or theo- retical plates. Traversing through steps A - D in Figure 1H-1 is equivalent to hav- ing completed two vaporization-condensation cycles or two theoretical plates. Predict the temperature of the...
Enter your answer in the provided box. How many 13C NMR signals does the following compound exhibit? signal(s)
Why does water have a higher boiling point than ethanol? How does this property allow distillation to work? 1 paragraph please
7.(16 pts) Two parallel plates (see figure below) have a seperation of 5 mm and a potential difference of 1000 V between them. The bottom plate has higher potential. An electron (me = 9.1e-31 kg, ge-_1.6e-19 C) įs released from rest from top plate. (a) Compare the electrical force with gravitational force applied on the electron. (b) Find the speed of the electron when it hits the lower plate, i.e., find the impact speed. (c) Find the impact speed of...
Hi! Based off the the 5 questions in the beginning can you please help me with question 6 What is distillation, and how is it possible that it separates two (or more) liquid compounds from each other? What is the difference between simple and fractional distillation? Our distillation experiment replicated what is used in the beverage industry to produce high concentration alcoholic spirits. Why can't high alcohol contents be produced by yeast fermentation alone? Why must distillation be used? Distillation...