Boiling

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    According to the average density and the boiling point of the experiment, the probable identify liquid of M4C is Propanol (Isopropyl alcohol), with the density value is (0.788 g/mL) and boiling point is (82.67 *C) compare with the literature value of density (0.785 g/mL) and the boiling point (82.4 *C), which Propanol (Isopropyl alcohol) should be the liquid of M4C. The Propanol (Isopropyl alcohol) has no color. The key of identify the unknown is the boiling point and the density, because if…

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    possible to learn about using a Reflux condenser to run a reaction as well as purifying the product through various washes and extractions along with simple distillation. In addition, the product of the experiment was carefully analyzed based upon boiling point, physical characteristics, IR and 1H NMR. The overall objective was to successfully isolate the product of isopentyl acetate and observe the purity of this product. Reaction Scheme: Procedure: The procedure for this experiment was…

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    Fig 4.12 shows the comparison of product density of hydrotreated GO obtained using CAT-E and CAT-C. The density of hydrotreated GO from CAT-C at 370◦C was 0.8148g/ml whereas at the same temperature the density of hydrotreated GO obtained from CAT-E was 0.8302 g/ml despite sulphur and nitrogen in the GO has been reduced to less than 50 ppm and 1 ppm respectively. The reason for higher density would be due to higher aromatic content in the hydrotreated product obtained from CAT-E. This indicates…

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    Steam Distillation

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    1. Why was a steam distillation performed rather than a simple distillation performed in the isolation of citral from lemon grass oil? Simple distillation is used to isolate a pure non-volatile liquid from another non-volatile substance. Steam distillation is used to separate liquid and solid that are somewhat volatile and immiscible in water. Since citral is moderately volatile, it was best to use steam distillation. 7. Both geranial (1) and vitamin A (2) are members of the class of natural…

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    like if the test tube got stolen or if all of it just simply evaporated away maybe because the rubber stopper wasn’t on tightly. But I was able to successfully identify all three of the liquids. I said that Liquid A was Ethanol mainly because of the boiling point which…

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    The 1H NMR data strongly suggests that 3-pentanol was produced. On the 1H NMR, there are a total of 12H, which is the correct number of protons on 3-pentanol. Around 3.45ppm, there is a multiplet with an integration of 1. This peak corresponds to the methine proton on the carbon bearing the alcohol. The integration of 1 is correct since there is only one proton on that carbon. This proton has 5 neighboring protons, and is expected to be a multiplet (doublet of triples, or a triple of doublets).…

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    Thu Doan Chem 2211-02 Fractional Distillation of a Binary Mixture 1. Explain why a packed fractional distillation column is more efficient than an unpacked column for separating two closely boiling liquids. Packing in the columns create more theoretical plates, which means better efficiency for distillation. The packed fractional distillation column provides a large surface area for heat exchange between the vapor and liquid. This allows for better separation between the liquids. 11. a) A…

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    Temperature Measurement

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    kinetic energy and feel warmer than a material with slower particles. Boiling Boiling is the process where molecules transition from the liquid phase to the gas phase, resulting in the formation of vapour bubbles within the liquid (Figure 1). Figure 1 – Liquid changing to a gas. Boiling Point Boiling point is the temperature at which the vapour pressure of the liquid equals the environmental pressure that surrounds the liquid. At boiling point, the vapour pressure of the liquid becomes…

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    molecular properties. The salt increases the boiling temperature, which makes the tendency for the water to evaporate is greater than the tendency for the water to remain on a molecular level. When the salt is added, the phenomenon known as “boiling point elevation” occurs. Which, involves the old school chemistry the solute, the solvent, and the solution. Chefs swear on salt making the water boil, but it just makes the water temperature rise, but the boiling temperature does not rise. Salt…

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    Calorimetry Lab

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    After the desired product was dried with anhydrous magnesium sulfate and filtered, the unknown product went through distillation to purify the ether. Once the ester was purified, a small sample was tested to measure the refractive index and the boiling…

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