RECRYSTALLIZATION OF ACETANILIDE ABSTRACT Recrystallization is the primary method for purifying solid organic compounds through the differences in solubility at different temperatures. In this experiment‚ a suitable solvent was first determined. Acetanilide was produced by acetylation of aniline with acetic anhydride. The crude acetanilide was dissolved in a solvent in a heating water bath. The hot solution was filtered and the filtrate‚ cooled slowly in an ice bath as crystals started forming
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CONCLUSION Angiosperms (flowering plant) include in phylum Anthophyta.Angiosperms are plant that have flowers and fruit. Their part of the flower is a carpel which surrounds and protects the ovules and seeds. The fruit surrounds the embryo and aids seed dispersal. The great majority of angiosperms are classified either as monocots or eudicots.Monocot embryos have a single seed leaf (cotyledon)‚ and pollen grains with a single groove while eudicots (true dicots) have two cotyledons‚ and pollen
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be observed that the values are relatively large‚ this is because the soil sample is fully saturated. However‚ the results of each test using different vane sizes yielded different values. The differences in the values can be caused by 1) Personal Errors‚ 2) Overburden Stress 3) The moisture content of the soil and the 4) condition of the soil. Since the whole experiment is done by eye‚ it is very much susceptible to personal errors; a group member could have misjudged the turning of the bottom part
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Use solubility of group 2 to figure out periodic trends as well as identify unknown captions Introduction The goals of this experiment were to determine periodic trends in solubility of group 2 metals. The other goal was to use our knowledge of solubility’s to identify cations present in a single unknown Xe and double unknown XXe. I have hypothesized that the solubility
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A generation of Suffolk Sporting talent inspired by Olympic flame The Suffolk Youth Games completed its inspirational journey from the millennium to the Olympics yesterday and bowed out in a blaze of glory as the Olympic Torch visited the closing ceremony. Around 800 young people representing Suffolk’s sporting future converged on Bury St Edmunds on Saturday 7th July for the thirteenth staging of the Redrow Homes Suffolk Youth Games. The event‚ organised by Suffolk Sport‚ the County Sports Partnership
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concentrations of a miscible liquid (ethanol) on the solubility of KNO3 in water. The results of the investigation support the hypothesis that water‚ which exhibits greater polarity‚ is able to dissolve a greater mass of KNO3 at lower temperatures compared to tested concentrations of Ethanol ranging from 12.5% to 30%. Furthermore‚ the results of the graph 1 show correspondence to the dielectric constant of each solvent as both the starting solubility of the solubility curves and the dielectric constant of the
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Purpose: The purpose of this experiment is to identify some commonly occurring anions & to study some of the reactions used for their identification. Materials: 1 Household Bleach‚ 2 mL 1 Distilled water 1 Toothpicks 2 Beaker‚ 50 mL‚ plastic 1 Cylinder-25-mL 1 Pencil‚ marking 1 Test Tube (5)‚ 13 x 100 mm in Bubble Bag 1 Well-Plate-24 1 Ammonium Molybdate‚ 0.2 M - 2 mL in Pipet 1 Aqueous Ammonia‚ 6 M‚ NH4OH - 4 mL in Pipet 1 Barium Chloride‚ 0.3 M - 2 mL in Pipet 1 Hydrochloric Acid‚ 6 M - 8 mL
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chloride) and mixed H2O (water) with each solution after being heated. After examining our solutions‚ we made calculations by finding the percent mass of each solution once the experiment was completed. In our findings‚ we were able to determine the mass of the determined and the percent recovery of matter. The outcome of the experiment was that we made the correct calculations which gave us the confidence to know how to do an analysis of mixture. Introduction A mixture is a material that is not uniform
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In part 1 the results of the solubility do not agree with the with rules of solubility most likely because we put too much solid in the test tubes and not enough water to dissolve it. They should have dissolved because the anything with nitrate should be soluble. With the pH‚ when the mixture where compared with the chart all of them except NaCl where a shade of blue which means that they have a pH of 8-14‚ depending on the darkness of the shade‚ meaning that they are a basic solution. When reacting
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How does the chemical being burned affect the color of fire? Why do you think each fire burns a different color? The colors of the flames are are due to the different chemicals and substances. The bright yellow-orange of most wood fueled flames is because of the sodium‚ and when it’s heated‚ it emits the glow of the fire. The blue in some wood-fueled flames is because of the carbon and hydrogen emit a blue and purple aura. How are the colors produced by a chemical when it burns related to the atomic
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