Unknown Crystals
The Identity of the unknown, in this case unknown A, was determined to be acetyl salicylic acid. This was determined by comparing the melting points of the purified unknown crystals to the crude unknown. The known melting point range for acetyl salicylic acid is 135°C -136°C. The Unknown’s melting point was slightly off at 128.6°C - 132°C. This can be due to impurities of the crystals during the purification process. There were a few steps in the experiment that may have contributed to impurities in the unknown crystals. In the beginning of the experiment, the column with alumina was used to filter the methanol/unknown mixture into a vial. It was important to add the mixture after methanol was added to the column and was still above the top
Chem 100 Final Lab Report
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Unknown 6 Essay
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Unknown Compound
1525 Words | 7 PagesIdentification of an Unknown Compound using Quantitative and Qualitative Analysis Lauren Tremaglio Chemistry 1011 Lab, Section 16 Instructor: Steven Belina October 3, 2014 Our signatures indicate that this document represents the work completed by our group this semester. Experimental Design and Discussion of Results The objective of this experiment was to identify an unknown compound through quantitative and qualitative analysis. In order to find the identity of the unknown compound, an initial qualitative test for solubility was performed.
Chrystal Observation
631 Words | 3 PagesThe last few days I have had the chance to work with Chrystal I wanted to do a quick recap on what we have been able to cover in her training so far and confirm improvement on points Amanda was able to make in her first recap! Chrystal is overall very confident in setting up for appointment, filling out tray covers, getting patients from the front, walking them to the front, and taking photos (we discussed improvements on photos and techniques.) Here are a few appointments we have covered in the last few days. Comfort shorts: She is very eager to jump in!
Acetylsalicylic Acid Synthesis Lab Report
704 Words | 3 PagesPure ASA crystals are isolated from the solution with a Hirsch Funnel that was used with a filter. The melting point of the pure ASA crystals were calculated in order to calculate of absorbance. Iron (III) salicylate dianion must contain the acidified solution Fe3+ in order to measure the absorbance values. The level of the impurity can
Unknown B Test Lab Report
500 Words | 2 PagesWe identified unknown A as acetaminophen. This is because unknown A had all the same tested properties as acetaminophen when we performed our tests. For unknown B we found it to be acetaminophen and caffeine. This is because like unknown A, unknown B properties were the same as acetaminophen, but unknown B was acetone soluble. Unknown B has similar properties to caffeine because it was acetone soluble and because caffeine was the only basic pH tested to change color during the FeCl3 test.
Willow Tree Research Paper
1065 Words | 5 PagesAspirin is considered a “polydrug” due to its variety of uses stretching from pain-relief to disease prevention. Salicylic acid is derived from the bark and leaves of the willow tree. Salicylic acid belongs to a group of phytochemicals which have been shown to have positive effects on human health. Salicylic acid is a phenolic compound that can be found in a variety of plants and is a crystal organic carboxylic acid. However, it is more commonly viewed as the primary metabolite and active compound of acetyl salicylic acid, which has been used as an anti-inflammatory drug by physicians for over 100 years.
Rose Quartz Research Paper
691 Words | 3 PagesIntroduction Rose quartz is a pale pink to rose-red variety of quartz. Quartz is the second most plentiful mineral found in the Earth’s crust. Rose Quartz occurs only in massive formations, with no crystal faces, edges or points. It is often hazy or turbid; therefore it lacks good transparency. It also contains microscopic fibers, which can on occasion produce a cat’s eye or star effect within the stone.
Binary Liquid Vapour Phase Diagration Lab Report
1855 Words | 8 PagesThe sample was placed into appropriate vials as the liquid (L), and the vial was closed by the stopper. For 59.0℃ (acetone-rich side of azeotrope). 25 mL of chloroform and 75 mL acetone were added into the 250 mL round bottom flask. Small amount of boiling stone was added into the flask.
Nucleophilic Substitution Reactions Lab
1039 Words | 5 Pages3. To purify and identify the product, recrystallization is used in order to purify the product, then melting point and TLC techniques are used to identify the product. Theory 4.
Ascorbic Acid Lab Report
2272 Words | 10 PagesIt has an infinite solubility with a density of 1.05. Its pH in a 1.0 M solution is at 2.4 with a vapor pressure of 11mmHg at 20 °C or 68 °F and a vapor density of 2.1 in air. It is stable under ordinary conditions of use and storage. Heat and sunlight may contribute to its instability. Heat, flame, ignition sources, freezing and incompatibles are conditions that must be avoided.
Ionic And Covalent Compounds Lab Report
902 Words | 4 PagesAlso, although this likely served no contribution in disheveling the results, using a stirrer of the same material to ensure the separate testing of each substance will be as uniform as
Recrystallizing Benzoic Acid Lab Report
1019 Words | 5 PagesIf impure, preform recrystallization procedure to remove the impurities. Then calculate Percent Recovered on crystals formed, and preform melting point procedure. 2. You find that a solid substance you are trying to purify is very soluble in ethanol, but not very soluble in water. You decide that you are going to try to recrystallize it from a solvent pair, consisting of ethanol and water.
Crystal Healing Research Paper
1693 Words | 7 PagesEnergy-Based Therapies Including Reiki, crystal healing, and breathing techniques Christina Tewfik New York Institute of Technology Energy-Based Therapies Including crystal healing, Reiki, and Music Therapy Many people do not know the real truth about energy therapies. People who suffer from constant headaches, swelling with muscles, nausea, or even anxiety are the common patients who seek energy therapy treatments. Energy therapies are an alternative for surgery or consuming medicine.
Ice Crystals: A Narrative Fiction
1034 Words | 5 PagesIt was the coldest day of her life, both physically and emotionally. It was during the winter and Christmas was nearing once again. It didn 't feel like Christmas however, it had yet to snow a single inch and the temperature had yet to drop below 60 degrees. Mino had come to expect this though as everybody was talking about how this would be the year where they 'd get an "empty Christmas”. Mino viewed the snow like she viewed many things, things that just come with events.
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