Is Distillation? Answer: Distillation is a widely used method for separating mixtures based on differences in the conditions required to change the phase of components of the mixture. To separate a mixture of liquids‚ the liquid can be heated to force components‚ which have different boiling points‚ into the gas phase. The gas is then condensed back into liquid form and collected. Repeating the process on the collected liquid to improve the purity of the product is called double distillation. Although
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Eggshell Lab Lab Set-Up: Materials: * pipette with pipette bulb * conical flask * 1 beaker * 1 molar sodium hydroxide solution * 2 molar hydrochloric acid solution * 1 funnel * 1 piece circular filter paper * crushed poultry eggshell * crushed farm eggshell * phenolphthalein * Distilled water * White tile * Paper tray * burette in burette stand * electronic scale Procedure: Step 1: Standardization of the NaOH solution using
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CUMULATIVE MOLE WORKSHEET (Chemistry IB) 1. How many molecules are present in 27.0 g of distilled water? A. 2.7 x 1024 B. 1.5 C. 9.0 x 1023 D. 4.5 2. How many moles of carbon dioxide will be formed when 32.0 g of methane‚ CH4‚ burns completely in oxygen? A. 1.0 B. 2.0 C. 4.0 D. 8.0 3. How many oxygen atoms are present in 0.5 mole of pentahydrated copper(II) sulfate‚ CuSO4.5H2O? A. 2.5 B. 4.5 C. 3.0 x 1023 D. 2.7 x 1024 4. What is the total number of atoms in 3.0 molecules of propanone‚ CH3COCH3
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Fractional Distillation Name: Pinaki Das Partner’s Name: Alice Kim Course: Advance Science Grade 9 Slot: B Date: November 6th 2013 Fractional distillation separates a mixture of liquids based on differences in the boiling points of the liquid. The purpose of this experiment was to identify
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string to a 50 g weight hanger and drape the string over the pulley. The string length should be such that‚ when one hanger hits the floor‚ the upper part of the other hanger is near the pulley‚ without touching the pulley. (You may find that the lab assistant has already set up the apparatus as described here. If so‚ double check the setup.) 2. Place equal masses of approximately 1000 g on each weight hanger. These masses should include four 5 g masses at the top of the left hanger. Hold back
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Steam Distillation Purpose: To use steam distillation to purify heat sensitive‚ natural products‚ like essential oils. Procedure Please refer to: Williamson‚ Macroscale &Microscale Organic Experiments 4th Ed.‚ pgs.98-109 Results Table 1.1: Steam distillation Drop # (every third drop) Temperature (ºC) Addition of 0.5 mL water 1 100.3 Water added 2 100.5 3 100.5 Water added 4 100.6 Water added 5 100.6 6 100.6 Water added 7 100.6 8 100.6 Water added 9 100.3 10 100.6
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Proteins are arguably the most important things that people know the least about. As OpenStax CNX puts it‚ “Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules”. Proteins are “Macromolecules that contain nitrogen as well as carbon‚ hydrogen‚ and oxygen”(Miller‚ Kenneth R.‚ and Joseph S. Levine 48). Macromolecules are exceedingly large molecules that can be made up of several lesser molecules called proteins.
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Title: Distillation of an Ethanol Using Fractional Distillation Lab Report Abstract: This experiment aimed to separate the components of a mixture using Fractional Distillation. A volume of 28.0mL of a mixture including ethanol was heated until the temperature reached 78.0 C. Approximately 1.0mL of distillate was collected between 78.0 – 84.0 C. Percent composition by weight of the 1.0mL sample was determined to be 95% ethanol. By careful and accurate techniques‚ a high percent composition
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Lab 2: The Chemistry of Life Name _____Aniqa Qureshi_ Insert the chemical symbol in the answer blank for each of the following elements. ___O______ 1. oxygen ___C______ 2. carbon ___K______ 3. potassium ___I______ 4. iodine ___H______ 5. hydrogen ___N______ 6. nitrogen ____Ca_____ 7. calcium ____Na_____ 8. sodium ____P_____ 9. phosphorus ____Mg_____ 10. magnesium ____Cl_____ 11. chloride ____Fe_____ 12. iron In the space below‚ list the chemicals (above) from the MOST
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Distillation Column In the the Chemical Enginneering Lab at CSULB there is a total reflux eight-stage glass binary distillation column at atmospheric pressure. The components that need to be separated are 1-propanol and 2-propanol. These two compounds are isomers with fairly close boiling points. They are separated based on their physical propertis. With the
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