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a 1:1 solution of ethyl acetate:hexane is more polar than a 2:1 solution if hexane:ethyl acetate?...
Common solvents used in TLC analysis are hexane and ethyl acetate, the latter being more polar. A TLC has been performed on a mixture of two compounds. The solvent ran for 3 cm(plate length is 6cm) with 5% ethyl acetate in hexane. The two spots were not resolved, meaning they showed up too close to each other. What can you suggest to possible improve the results of the separation?
Which is the most polar of each solvent pair? Toluene or Ethyl Acetate? Methanol or DCM (dichloromethane)? Benzene or Phenol? Benzoic acid or Cyclohexane?
3. A constitutional isomer of ethyl acetate has a retention time somewhat less than ethyl acetate itself. Does this alternate isomer have a stronger or weaker intermolecular interaction with the stationary phase of the GC column? Explain briefly. 4. The literature value for the boiling point of ethyl acetate is 77.1 °C at sea level (standard one atmosphere pressure, 101 kPa). A student wished to purify some ethyl acetate while working on a project at the shore of the Dead...
Hello there, I did an extraction of caffeine organic lab experiment. Why is ethyl acetate used for extracting caffeine and not other solvents? I know that ethyl acetate, caffeine, and water are polar but why are two layers formed after mixing caffeine in water and ethyl acetate? I'm a little confused. I thought that polar mixes with polar and nonpolar mixes with nonpolar. Is caffeine not polar? Is ethyl acetate soluble in water? Please explain. Thank you very much! :)
1) When you measured out one mL of the trans-1,2-dibenzoylethylene in ethyl acetate solution it had a mass of 0.890 grams. (0.050 g of yellow solid and rest of it is Ethyl acetate). The forerun of ethyl acetate had a mass of 0.075g and the rest of the ethyl acetate collected had a mass of 0.253 g. The trans-1,2-dibenzoylethylene had a mass of 0.046 g. What is the percent recovery of each of the materials?
Let's say that you need to prepare a 66.8 % (v/v) solution of ethyl acetate (C4H8O2) dissolved in triethylamine (C6H15N). What mass (in g)of ethyl acetate would you need to prepare 560.5 g of this solution? density of ethyl acetate: 0.902 g/mL density of Triethylamine: 0.726 g/mL
Rank these solvents from least polar to most polar: water, toluene, isopropyl alcohol, ethanol, and ethyl acetate
Given the partition coefficient between ethyl acetate and water for Compound A is 7.0, 1. what mass of A, to the tenths place, would be extracted from a 50 mL solution of water containing 9.0 g of A using 25 mL ethyl acetate? (2 pt)
Can you explain why the three molecules (Isopropanol C3H8O, Ethyl Acetate C4H8O2, and Propyl Acetate C5H10O2 are polar or non molar at a chemical level?
Question 2 Predict how NMR can distinguish between ethyl acetate and methyl propanoate? ethyl acetate methyl propionate